Perhaps you should try some spelling variations:
sach hay » sach han, sach ha, sach nay
hay lang » ha lang, tay lang, nhan lang
cau phuc » cau truc, chau phu, huu phuc
hanh vai » hanh vi, hanh va, hanh tai
su sach » so sach, vu sach
lang ha » long ha
hieu ve » hieu va, hieu van
phuc va » phuc vu, thuc va, chuc va
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
ha hoi » hoa hoi, ha noi, xa hoi
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: su sach hay lang ha hoi. ((hieu ve) or (lieu va)) cau phuc va hanh vai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach hay lang ha hoi. ((hieu ve) OR (lieu va)) cau phuc va hanh vai cua tu.
• Adding a wildcard symbol may retrieve word variants: su sach hay lang ha hoi. ((hieu ve) or (lieu va)) cau phuc va hanh vai cua tu*.