Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
hieu van » hieu va, thien van, lieu va
tu sach » thu sach, te sach, tu cach
duc van » duc va, duc tan, duc manh
vai cua » dai cua, hai cua, lai cua
vuc van » luc van, thuc van, chuc van
van cau » van dau, van hau, van chat
lang ha » long ha
su sach » so sach, vu sach
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: ((tu sach) OR (su sach)) _ lang ha noi. hieu van cau ((duc van) or (vuc van)) hanh vai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) _ lang ha noi. hieu van cau ((duc van) OR (vuc van)) hanh vai cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (su sach)) _ lang ha noi. hieu van cau ((duc van) or (vuc van)) hanh vai cua tu".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (su sach)) _ lang ha noi. hieu van cau ((duc van) or (vuc van)) hanh vai cua tu*.