Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu tinh » trieu tinh, lieu tinh, chau tinh
chieu sang » chieu sach, chieu xanh, hieu lang
dung cong » dung trong
cong danh » cuong danh, cong dan, cong thanh
trung ha » trung hoc, trung tam, trung cap
toan cau » toan cao, toan tap, toan tai
toan ban » van ban
ha dung » hai dung, kha dung, nha dung

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 tinh) or (chieu sang)) - thanh trung ha dung cong danh ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu tinh) OR (chieu sang)) - thanh trung ha dung cong danh ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: theo ((chieu tinh) or (chieu sang)) - thanh trung ha dung cong danh ((toan cau) or (toan ban))*.