Perhaps you should try some spelling variations:
hanh lai » hanh lam, hanh tai, thanh lap
sach hoi » sach doi, sach moi, cach thoi
lang van » dang van, tang van, hoang van
van hanh » van thanh, ban hanh, van anh
lai cua » dai cua, hai cua, lai chau
cau duc » cao duc, cau luc, chu duc
sach lo » sach dao, sach doi, sach moi
cua te » cua tu

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 lo) or (sach hoi)) lang van hoa. hieu qua ((cau duc) or (cau truc)) van hanh lai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach lo) OR (sach hoi)) lang van hoa. hieu qua ((cau duc) OR (cau truc)) van hanh lai cua te.
• Adding a wildcard symbol may retrieve word variants: tu ((sach lo) or (sach hoi)) lang van hoa. hieu qua ((cau duc) or (cau truc)) van hanh lai cua te*.