Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
ky sang » ky nang, ky dang, ky tang
hieu ve » hieu va, hieu van
tu sai » tu bai, tu san, tu cai
tuc va » thuc va, truc va, tuc xa
van cu » van cau, van chu, van cua
ve cam » ve cham, ve cac, va cam
xuc va » duc va, luc va, xac va
sai ky » sac ky
ma hoi » mai hoi, xa hoi, me hoi
cu tre » cu tren, cua tre, cuu tre

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai ky sang ((ma hoi) or (ma hoa)). hieu ve cam ((xuc va) or (tuc va)) thanh van cu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky sang ((ma hoi) OR (ma hoa)). hieu ve cam ((xuc va) OR (tuc va)) thanh van cu tre.
• Adding a wildcard symbol may retrieve word variants: tu sai ky sang ((ma hoi) or (ma hoa)). hieu ve cam ((xuc va) or (tuc va)) thanh van cu tre*.