Perhaps you should try some spelling variations:
cuu tre » cau tren, cau treo
cac tuc » cac toc, cac tu, cac tac
cua tre » cua te, cua triet, dua tren
ky sang » ky nang, ky dang, ky tang
sang xa » song xa, lang xa, sang ma
hieu ve » hieu va, hieu van
dau du » dau tu, day du, dao du
va dau » va dao
vu ban » va ban
tuc va » thuc va, truc va, tuc xa
tu ban » thu ban, te ban
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((vu ban) or (tu ban)) ky sang xa hoi. hieu ve cac tuc va dau du ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu ban) OR (tu ban)) ky sang xa hoi. hieu ve cac tuc va dau du ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: ((vu ban) or (tu ban)) ky sang xa hoi. hieu ve cac tuc va dau du ((cua tre) or (cuu tre))*.