Perhaps you should try some spelling variations:
trinh quang » tinh quang, trinh quan, tranh quang
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
thong cong » trong cong, tong cong, thong thong
trinh qua » trinh quan, trinh cua, trinh luat
cong dan » cong san, cong tan, huong dan
gian cau » gian chau, gian cac, gian cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu xanh) or (chieu sang)) - hanh ((trinh qua) OR (trinh quang)) thong cong dan gian cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sang)) - hanh ((trinh qua) OR (trinh quang)) thong cong dan gian cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) or (chieu sang)) - hanh ((trinh qua) OR (trinh quang)) thong cong dan gian cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chieu sang)) - hanh ((trinh qua) OR (trinh quang)) thong cong dan gian cau*.