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Trần Hoàng PhúcLecturer
12/10/2026 · Excel · 6 minutes of reading
XLOOKUP, FILTER, SUMIFS and two date functions cover most weekly reports. Each one below comes with an example you can type right away. See more
Staircase · Blog5 Excel functions office workers use every day6 minutes of readingNguyễn Minh ChâuLecturer
08/10/2026 · IELTS · 8 minutes of reading
Six months is enough to go from 5.0 to 6.5 if you study 90 minutes every day. The path below is split by month across all 4 skills. See more
Staircase · BlogA 6-month self-study path to IELTS 6.58 minutes of readingTrần Hoàng PhúcLecturer
03/10/2026 · AI · 5 minutes of reading
A clear prompt gives a draft you can use right away. Below is a 4-part formula and 3 prompt templates for office work. See more
Staircase · BlogWriting ChatGPT prompts for work reports5 minutes of readingA messy interface usually comes from uneven spacing, not colour. The three rules below fix most first designs. See more
Staircase · BlogFigma layout: 3 rules for a clean interface6 minutes of readingPhạm Đức AnhLecturer
24/09/2026 · Marketing · 7 minutes of reading
Raising the budget on a losing ad only loses money faster. The four numbers below tell you whether to raise, hold or stop. See more
Staircase · BlogFacebook ads: read 4 numbers before raising the budget7 minutes of readingNguyễn Minh ChâuLecturer
18/09/2026 · TOEIC · 5 minutes of reading
45 minutes a day, split evenly between listening and reading, is enough to reach 750 in 10 weeks if you are around 500 now. See more
Staircase · BlogTOEIC 750: a 10-week plan for busy workers5 minutes of reading
