Perhaps you should try some spelling variations:
cham truc » cau truc, nham thuc, pham thuc
truc may » tren may, truc va
tinh bai » tinh bac, tinh hai, hinh bai
hoc cac » hoc cao
nang xa » nang x, lang xa, nang ma
hieu ve » hieu van
hieu va » lieu va, hieu qua
y nang » ky nang, ly nang, v nang
ca tre » ca tren, cua tre, ca tru
cac y » cac ky, cac _, cap y

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc cac y nang xa hoi. ((hieu ve) or (hieu va)) cham truc may tinh bai ca tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc cac y nang xa hoi. ((hieu ve) OR (hieu va)) cham truc may tinh bai ca tre.
• Adding a wildcard symbol may retrieve word variants: hoc cac y nang xa hoi. ((hieu ve) or (hieu va)) cham truc may tinh bai ca tre*.