Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
thu bang » thu ban, chu bang, thu trang
thu hang » thi hang, thuc hanh, thu huong
hanh doi » thanh doi, hanh noi, hang doi
hieu van » hieu va, thien van, lieu va
te sach » toc sach
cua cau » cua cac, cua chu, cua can
van cac » van hac, van cau, van bac
xuc van » duc van, luc van, vuc van
cac xuc » cam xuc, cac nuoc, chat xuc
cua cay » cua cac

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 ((thu bang) OR (thu hang)) xa hoi. hieu van cac xuc van hanh doi ((cua cau) or (cua cay))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((thu bang) OR (thu hang)) xa hoi. hieu van cac xuc van hanh doi ((cua cau) OR (cua cay)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((thu bang) OR (thu hang)) xa hoi. hieu van cac xuc van hanh doi ((cua cau) or (cua cay))".
• Adding a wildcard symbol may retrieve word variants: te sach ((thu bang) OR (thu hang)) xa hoi. hieu van cac xuc van hanh doi ((cua cau) or (cua cay))*.