Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
nhung cong » dung cong, thong cong, hang cong
tieu sang » chieu sang, tieu dung, tiem nang
hung tuan » hung tran, quang tuan, hung thang
van thanh » ban thanh, van tuan
van than » van thang, van tuan, van phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sang - thanh ((hung tuan) or (trung tuan)) nhung cong ((van than) OR (van thanh)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sang - thanh ((hung tuan) OR (trung tuan)) nhung cong ((van than) OR (van thanh)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu sang - thanh ((hung tuan) or (trung tuan)) nhung cong ((van than) OR (van thanh)) cao".
• Adding a wildcard symbol may retrieve word variants: theo tieu sang - thanh ((hung tuan) or (trung tuan)) nhung cong ((van than) OR (van thanh)) cao*.