Perhaps you should try some spelling variations:
hieu van » thien van, lieu va, hieu ve
hanh via » hanh vi, hanh va, anh va
tru nang » tra nang, tri nang, truc nano
hieu va » lieu va, hieu qua
via cua » gia cua, gian cua, giau cua
va hanh » van hanh, va thanh, va danh
dao duc » giao duc, tao duoc
tu sach » thu sach, su sach, tu cach
nang xa » nang x, lang xa, nang ma
te sach » toc sach
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: ((tu sach) or (te sach)) tru nang xa hoi. ((hieu van) or (hieu va)) dao duc va hanh via cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) tru nang xa hoi. ((hieu van) OR (hieu va)) dao duc va hanh via cua te.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) tru nang xa hoi. ((hieu van) or (hieu va)) dao duc va hanh via cua te*.