Perhaps you should try some spelling variations:
thuat sac » thuat sach, thuat san, thuat tac
thien van » thi van
hieu van » hieu va, lieu va, hieu ve
danh vi » hanh vi, dinh vi, danh di
nang xa » nang x, lang xa, nang ma
cuu tre » cua tre, cau tren, cau treo
sac ky » cac ky, sai ky
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa
vi cuu » vi luu, vinh cuu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sac ky nang xa hoi. ((hieu van) or (thien van)) lam ((xuc va) OR (tuc va)) danh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sac ky nang xa hoi. ((hieu van) OR (thien van)) lam ((xuc va) OR (tuc va)) danh vi cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sac ky nang xa hoi. ((hieu van) or (thien van)) lam ((xuc va) OR (tuc va)) danh vi cuu tre".
• Adding a wildcard symbol may retrieve word variants: thuat sac ky nang xa hoi. ((hieu van) or (thien van)) lam ((xuc va) OR (tuc va)) danh vi cuu tre*.