Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
xay hoi » tay hoi, cay phoi, gay thoi
hieu ve » hieu va, hieu van
va danh » va dinh, va dan, va hanh
sai cua » dai cua, hai cua, lai cua
y dang » ky dang, 2 dang, _ dang
ve cam » ve cham, ve cac, va cam
cua tu » cua tuc, cua su, cua cu

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 y dang ((xay hoi) OR (xa hoi)). hieu ve cam xuc ((va danh) or (van hanh)) sai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y dang ((xay hoi) OR (xa hoi)). hieu ve cam xuc ((va danh) OR (van hanh)) sai cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y dang ((xay hoi) OR (xa hoi)). hieu ve cam xuc ((va danh) or (van hanh)) sai cua tu".
• Adding a wildcard symbol may retrieve word variants: te sach y dang ((xay hoi) OR (xa hoi)). hieu ve cam xuc ((va danh) or (van hanh)) sai cua tu*.