Perhaps you should try some spelling variations:
thanh tung » thanh cong
tuan khoan » tuan hoan, toan khoan, toan khoa
lieu tinh » trieu tinh, diep tinh, bien tinh
tung tuan » trung tuan, hung tuan, quang tuan
hang cong » dang cong, hang nong, bang cong
dung cong » dung trong
khoan cap » khoan cam, khan cap, khoa cap
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 tinh - thanh tung tuan ((hang cong) or (dung cong)) tuan khoan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho lieu tinh - thanh tung tuan ((hang cong) OR (dung cong)) tuan khoan cap.
• Adding a wildcard symbol may retrieve word variants: ho lieu tinh - thanh tung tuan ((hang cong) or (dung cong)) tuan khoan cap*.