Perhaps you should try some spelling variations:
nhung cong » thong cong, hang cong, nhung don
lieu tinh » trieu tinh, diep tinh
bien tinh » bi tinh, yen tinh, diep tinh
cong tuan » cong tan, cong luan, cong thanh
dung cong » dung trong
tuan khoa » toan khoa, luan khoa, tran khoa
khoa cap » khoa cam, khoa tap, khoa can

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) OR (bien tinh)) - thanh cong tuan ((nhung cong) or (dung cong)) tuan khoa cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((lieu tinh) OR (bien tinh)) - thanh cong tuan ((nhung cong) OR (dung cong)) tuan khoa cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((lieu tinh) OR (bien tinh)) - thanh cong tuan ((nhung cong) or (dung cong)) tuan khoa cap".
• Adding a wildcard symbol may retrieve word variants: ho ((lieu tinh) OR (bien tinh)) - thanh cong tuan ((nhung cong) or (dung cong)) tuan khoa cap*.