Perhaps you should try some spelling variations:
thanh tri » thanh tra, thanh tai, chinh tri
thu sach » tu sach, thuat sach, thuoc sach
va thanh » gia thanh, ban thanh, va tinh
vu cham » va cham, vu kham, tu cham
cua tre » cua te, cuu tre, cua triet
ma hoi » mai hoi, xa hoi, ma hoa
y nang » ky nang, ly nang, may nang
v nang » va nang, vu nang, van nang
lo va » lo van, lao va, ly va

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 (v nang)) ma hoi. hieu ((vu cham) or (va cac)) lo va thanh tri cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((y nang) OR (v nang)) ma hoi. hieu ((vu cham) OR (va cac)) lo va thanh tri cua tre.
• Adding a wildcard symbol may retrieve word variants: thu sach ((y nang) or (v nang)) ma hoi. hieu ((vu cham) or (va cac)) lo va thanh tri cua tre*.