Perhaps you should try some spelling variations:
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
hieu va » lieu va, hieu qua
dinh du » dinh duc, dinh cu, dinh dung
dinh tu » danh tu, dinh cu, tinh tu
cuu tre » cua tre, cau tren, cau treo
vu sac » vu sach, vu san, va sac
sac ky » cac ky, sai ky
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, xac va
luc va » duc va, tuc va, loc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sac ky tang xa hoi. hieu va cam ((xuc va) or (luc va)) ((dinh du) or (dinh tu)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sac ky tang xa hoi. hieu va cam ((xuc va) OR (luc va)) ((dinh du) OR (dinh tu)) cuu tre.
• Adding a wildcard symbol may retrieve word variants: vu sac ky tang xa hoi. hieu va cam ((xuc va) or (luc va)) ((dinh du) or (dinh tu)) cuu tre*.