Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
ty lang » tay lang, ty xang, ty hang
va tham » van tham, va cham, va thanh
duc van » duc va, duc manh, duc phan
vai cua » dai cua, hai cua, lai cua
ha hoi » hoa hoi, xa hoi, va hoi
cua su » qua su

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ty lang ((ha hoi) OR (ha noi)). lieu va tham ((duc van) or (duc tan)) hanh vai cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty lang ((ha hoi) OR (ha noi)). lieu va tham ((duc van) OR (duc tan)) hanh vai cua su.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty lang ((ha hoi) OR (ha noi)). lieu va tham ((duc van) or (duc tan)) hanh vai cua su".
• Adding a wildcard symbol may retrieve word variants: su sach ty lang ((ha hoi) OR (ha noi)). lieu va tham ((duc van) or (duc tan)) hanh vai cua su*.