Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
sach thu » sach thue, sach thieu, sach tham
lang hoa » hang hoa, lang ha, nang hoa
duc manh » suc manh, duc anh, duc minh
vai cua » dai cua, hai cua, lai cua
duc van » duc va, duc tan, duc phan
va tham » van tham, va cham, va thanh
sach tu » cach tu, sach ty, sach uu
hoa hoi » khoa hoi, hoa hoc, hoa doi
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 tu) OR (sach thu)) lang hoa hoi. lieu va tham ((duc van) or (duc manh)) hanh vai cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach tu) OR (sach thu)) lang hoa hoi. lieu va tham ((duc van) OR (duc manh)) hanh vai cua su.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach tu) OR (sach thu)) lang hoa hoi. lieu va tham ((duc van) or (duc manh)) hanh vai cua su".
• Adding a wildcard symbol may retrieve word variants: su ((sach tu) OR (sach thu)) lang hoa hoi. lieu va tham ((duc van) or (duc manh)) hanh vai cua su*.