Perhaps you should try some spelling variations:
manh hanh » xanh hanh, danh thanh, minh thanh
thu nang » thi nang, thu hang, thu bang
hanh dai » hanh tai, hanh dao, vanh dai
duc manh » suc manh, duc anh, duc minh
sach thu » sach thue, sach thieu, sach tham
te sach » toc sach
cam duc » cam xuc, cao duc, pham duc
hieu ve » hieu va, hieu van
dai moi » doi moi, dai hoi
lai hoi » dai hoi, lai hoa, lai roi
ve cam » ve cham, ve cac, va cam
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: te sach thu nang ((xa hoi) or (((lai hoi) or (dai moi)))). hieu ve cam duc manh hanh dai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach thu nang ((xa hoi) OR (((lai hoi) OR (dai moi)))). hieu ve cam duc manh hanh dai cua tu.
• Adding a wildcard symbol may retrieve word variants: te sach thu nang ((xa hoi) or (((lai hoi) or (dai moi)))). hieu ve cam duc manh hanh dai cua tu*.