Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
ban thanh » ban hanh, ban hang
su triet » su viet, su tien, ve triet
hieu va » lieu va, hieu qua
luc ban » duc ban, cuc ban, luc bat
cam luc » cam xuc, cau luc
te sach » toc sach
vu dang » su dang, vu quang, cua dang
va cam » va cham, va cac, va cao
v nang » va nang, vu nang, van nang
dai su » dai sua, dai so, dan su
x hoi » xa hoi, o hoi, 5 hoi

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) or (vu dang)) ((x hoi) or (x ho)). hieu va cam luc ban thanh dai su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((v nang) OR (vu dang)) ((x hoi) OR (x ho)). hieu va cam luc ban thanh dai su triet.
• Adding a wildcard symbol may retrieve word variants: te sach ((v nang) or (vu dang)) ((x hoi) or (x ho)). hieu va cam luc ban thanh dai su triet*.