Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
cau luc » cau truc, cau phuc
luc van » luoc van, luu van, duc van
tuan vi » luan vi, quans vi, tuan tai
quan vi » quan li, quan tri, quan doi
tu tren » tu truyen, tu tieng, tu trong
y nang » ly nang, v nang, may nang
ma hoi » mai hoi, xa hoi, ma hoa
va cau » van cau, va cac, va dau

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 ((y nang) or (ky nang)) ma hoi. lieu va cau luc van ((tuan vi) or (quan vi)) tu tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((y nang) OR (ky nang)) ma hoi. lieu va cau luc van ((tuan vi) OR (quan vi)) tu tren.
• Adding a wildcard symbol may retrieve word variants: thu sach ((y nang) or (ky nang)) ma hoi. lieu va cau luc van ((tuan vi) or (quan vi)) tu tren*.