Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
nang tai » hang tai, tang tai, sang tai
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
tai hoi » tai khoi, dai hoi, tai hai
cam luc » cam xuc
cau luc » cau truc, cau phuc
va hanh » van hanh, va thanh, va danh
cu tren » tu tren, dua tren
vi cu » vi su, vi xu, vi du

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ty nang tai hoi. lieu va ((cam luc) or (cau luc)) va hanh vi cu tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ty nang tai hoi. lieu va ((cam luc) OR (cau luc)) va hanh vi cu tren*.