Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, nhieu tang
tranh chua » tranh cua, trinh chuan, tranh chap
hieu lang » hieu quang, nhieu tang, hieu van
chua tong » chua dong, cua tong, thuat tong
tong cong » trong cong, cong cong, dung cong
tran chau » tranh chap, tran huu
cong tan » cong tac, cong san, cong thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu xanh) or (((chieu sang) OR (hieu lang)))) - canh tranh chua tong cong tan tran chau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu xanh) OR (((chieu sang) OR (hieu lang)))) - canh tranh chua tong cong tan tran chau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu xanh) or (((chieu sang) OR (hieu lang)))) - canh tranh chua tong cong tan tran chau".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu xanh) or (((chieu sang) OR (hieu lang)))) - canh tranh chua tong cong tan tran chau*.