Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
te sach » toc sach
hieu va » lieu va, hieu qua
tai cua » thai cua, tai cuc, tri cua
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang
va cam » va cham, va cac, va cao
luc va » loc va
tuc va » thuc va, truc va, tuc xa
cua tu » cua tuc, cua su, cua cu
x hoi » xa hoi, o hoi, x ho

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 v nang x hoi. hieu va cam ((((luc va) OR (duc va))) or (tuc va)) thanh tai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach v nang x hoi. hieu va cam ((((luc va) OR (duc va))) OR (tuc va)) thanh tai cua tu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach v nang x hoi. hieu va cam ((((luc va) OR (duc va))) or (tuc va)) thanh tai cua tu*".