Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
trung cua » truong cua, trung tuan, trung cap
cua trong » cua truong, cua trung, qua trong
khoan cam » khoan va, phan cam, thuan cam
cong tac » cong ty
khoa cam » khoa kham, khoa ma, hoa cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu xanh) or (chieu sang)) - thanh trung cua trong cong tac ((khoan cam) OR (khoa cam))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu sang)) - thanh trung cua trong cong tac ((khoan cam) OR (khoa cam)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (chieu sang)) - thanh trung cua trong cong tac ((khoan cam) OR (khoa cam))".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chieu sang)) - thanh trung cua trong cong tac ((khoan cam) OR (khoa cam))*.