Perhaps you should try some spelling variations:
hanh via » hanh vi, hanh va, anh va
hoc sac » hoc sach, hoc cac, hoc mac
cam luc » cam xuc, cau luc
via cua » gia cua, gian cua, giau cua
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
hieu va » hieu qua
hieu ve » hieu van
nang xa » nang x, lang xa, nang ma
sac ky » cac ky, sai ky
luc va » duc va, tuc va, loc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc sac ky nang xa hoi. ((((hieu ve) or (hieu va))) or (lieu va)) cam luc va hanh via cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sac ky nang xa hoi. ((((hieu ve) OR (hieu va))) OR (lieu va)) cam luc va hanh via cua tre.
• Adding a wildcard symbol may retrieve word variants: hoc sac ky nang xa hoi. ((((hieu ve) or (hieu va))) or (lieu va)) cam luc va hanh via cua tre*.