Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
hieu van » hieu va, thien van, lieu va
cua viet » ca viet, hoa viet, cua vat
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
van dau » van dao, phan dau
tai cua » thai cua, tai cuc, tri cua
su xac » pu xac, su cac
xac ky » cac ky, sac ky, bac ky
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: su xac ky lang xa hoi. hieu van dau ((xuc va) or (tuc va)) thanh tai cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su xac ky lang xa hoi. hieu van dau ((xuc va) OR (tuc va)) thanh tai cua viet.
• Adding a wildcard symbol may retrieve word variants: su xac ky lang xa hoi. hieu van dau ((xuc va) or (tuc va)) thanh tai cua viet*.