Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san, tinh toan
thanh tai » thanh hai, doanh tai, thanh san
hieu van » hieu va, thien van, lieu va
toc sac » toc sach, toc san, hoc sach
nang xa » nang x, lang xa, nang ma
nam tuc » nam thuc, nam truc, nam tu
sac ky » cac ky, sai ky
tuc va » thuc va, truc va, tuc xa
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sac ky nang xa hoi. hieu van nam tuc va ((thanh tai) or (thanh toan)) ((cua te) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sac ky nang xa hoi. hieu van nam tuc va ((thanh tai) OR (thanh toan)) ((cua te) OR (cua tu)).
• Adding a wildcard symbol may retrieve word variants: toc sac ky nang xa hoi. hieu van nam tuc va ((thanh tai) or (thanh toan)) ((cua te) or (cua tu))*.