Perhaps you should try some spelling variations:
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
va tuan » van tuan, va quan, va toan
danh vi » hanh vi, dinh vi, danh di
luu tre » luu tru, cuu tre, luy tre
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
soc va » hoc va, doc va, goc va
loc va » hoc va, luc va
vi luu » vi lua

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 ky lang xa hoi. hieu va tuan ((soc va) or (loc va)) danh vi luu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky lang xa hoi. hieu va tuan ((soc va) OR (loc va)) danh vi luu tre.
• Adding a wildcard symbol may retrieve word variants: te sac ky lang xa hoi. hieu va tuan ((soc va) or (loc va)) danh vi luu tre*.