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

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((((hieu lang) OR (chieu sang))) or (chieu sach)) - hanh tranh va nhung cong thanh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((hieu lang) OR (chieu sang))) OR (chieu sach)) - hanh tranh va nhung cong thanh toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((((hieu lang) OR (chieu sang))) or (chieu sach)) - hanh tranh va nhung cong thanh toan cao".
• Adding a wildcard symbol may retrieve word variants: ho ((((hieu lang) OR (chieu sang))) or (chieu sach)) - hanh tranh va nhung cong thanh toan cao*.