Perhaps you should try some spelling variations:
thanh tri » thanh tra, thanh tai, chinh tri
te sach » toc sach
va cham » va chat, va tham
sach ty » sach y, sach tu, sach thu
hieu va » lieu va, hieu qua
ty nang » ky nang, ty xang, ty hang
cua tre » cua te, cuu tre, cua triet
ma hoi » mai hoi, xa hoi, me hoi
loc va » hoc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ty nang ((ma hoi) OR (ma hoa)). hieu va cham ((tuc xa) or (loc va)) thanh tri cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang ((ma hoi) OR (ma hoa)). hieu va cham ((tuc xa) OR (loc va)) thanh tri cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang ((ma hoi) OR (ma hoa)). hieu va cham ((tuc xa) or (loc va)) thanh tri cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ty nang ((ma hoi) OR (ma hoa)). hieu va cham ((tuc xa) or (loc va)) thanh tri cua tre*.