Perhaps you should try some spelling variations:
lang tai » lang thai, hang tai, tang tai
hieu va » lieu va, hieu qua
cac luc » cau luc, coc luc, cac nuoc
cua tre » cuu tre, cua triet, dua tren
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
va lang » va nang, hoa lang
te sac » te sach, te cac, te san
luc va » duc va, tuc va, loc va
tu san » thu san, tu ban, tu can
cua te » cua tu

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

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