Perhaps you should try some spelling variations:
thanh tung » thanh cong
tung tuan » trung tuan, hung tuan, quang tuan
tuan dung » tuan duong, tran dung, tan dung
cong toan » cong hoan, cong tuan, cong doan
khoan cap » khoan cam, khan cap, khoa cap
cot lieu » co lieu, vat lieu, so lieu
cong tan » cong tac, cong san, cong thanh
ho lieu » so lieu, co lieu, ho kieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho lieu) or (cot lieu)) tinh - thanh tung tuan dung ((cong toan) OR (cong tan)) khoan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho lieu) OR (cot lieu)) tinh - thanh tung tuan dung ((cong toan) OR (cong tan)) khoan cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho lieu) or (cot lieu)) tinh - thanh tung tuan dung ((cong toan) OR (cong tan)) khoan cap".
• Adding a wildcard symbol may retrieve word variants: ((ho lieu) or (cot lieu)) tinh - thanh tung tuan dung ((cong toan) OR (cong tan)) khoan cap*.