Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, nhieu tang
hanh trinh » canh tranh, hanh chinh
nhung cong » dung cong, thong cong, hang cong
hieu lang » hieu quang, nhieu tang, hieu van
trinh va » trinh van, trinh vat, trinh ve
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu lang) or (((chieu sang) or (chieu sach)))) - hanh trinh va nhung cong tan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu lang) OR (((chieu sang) OR (chieu sach)))) - hanh trinh va nhung cong tan toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu lang) or (((chieu sang) or (chieu sach)))) - hanh trinh va nhung cong tan toan tap*.