Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
tu nang » tru nang, tu nano, tu lang
tu nong » tu dong, tu cong, tu tong
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
xuc van » duc van, luc van, vuc van
ve cac » va cac, vien cac
vi qua » vi quan, va qua, 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 sach ((tu nang) OR (tu nong)) xa hoi. hieu ve cac xuc van hanh vi qua su~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((tu nang) OR (tu nong)) xa hoi. hieu ve cac xuc van hanh vi qua su".
• Adding a wildcard symbol may retrieve word variants: te sach ((tu nang) OR (tu nong)) xa hoi. hieu ve cac xuc van hanh vi qua su*.