Perhaps you should try some spelling variations:
thanh tung » thanh cong
tuan nhung » quan nhung, tuan hung, thuat nhung
nhung cong » dung cong, thong cong, hang cong
lieu tinh » trieu tinh, diep tinh, bien tinh
tung tuan » trung tuan, hung tuan, quang tuan
cong toan » cong tan, cong hoan, cong tuan
khoan cap » khoan cam, khan cap, khoan va
khoa cap » khoa tap, khoa can, khoan cam
khoa cam » khoan cam, khoa kham, khoa ma
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 nhung cong toan ((khoan cap) or (((khoa cap) OR (khoa cam))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho lieu tinh - thanh tung tuan nhung cong toan ((khoan cap) OR (((khoa cap) OR (khoa cam)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho lieu tinh - thanh tung tuan nhung cong toan ((khoan cap) or (((khoa cap) OR (khoa cam))))".
• Adding a wildcard symbol may retrieve word variants: ho lieu tinh - thanh tung tuan nhung cong toan ((khoan cap) or (((khoa cap) OR (khoa cam))))*.