Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
chiet tach » chieu sach
trung tuan » trung thanh, trung tam, tran tuan
phong cong » phong chong, thong cong, chong cong
tung tuan » hung tuan, quang tuan, trang tuan
cong san » cong tac
san than » sang than, san thanh, ban than
than cao » toan cao, thai cao, than cap

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 (chiet tach)) - thanh ((tung tuan) OR (trung tuan)) phong cong san than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chiet tach)) - thanh ((tung tuan) OR (trung tuan)) phong cong san than cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) or (chiet tach)) - thanh ((tung tuan) OR (trung tuan)) phong cong san than cao".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chiet tach)) - thanh ((tung tuan) OR (trung tuan)) phong cong san than cao*.