Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
bach duc » bach tuoc, sach duoc, thach duc
hanh vai » hanh vi, hanh va, hanh tai
te sach » toc sach
tu sang » thu sang, tu san, tu quang
tu lang » cu lang, tu lanh, xu lang
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
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 ((tu sang) or (tu lang)) xa hoi. hieu vien bach duc va hanh vai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((tu sang) OR (tu lang)) xa hoi. hieu vien bach duc va hanh vai cua tu.
• Adding a wildcard symbol may retrieve word variants: te sach ((tu sang) or (tu lang)) xa hoi. hieu vien bach duc va hanh vai cua tu*.