Perhaps you should try some spelling variations:
thanh tung » thanh cong
quan nhung » qua nhung, cua nhung, luan chung
thuat dung » thuat hung, thuat ung, thuat xung
bien tinh » bi tinh, yen tinh, diep tinh
dan khoan » dan khoa, dai khoang, toan khoan
khoan cam » khoa cam, khoan va, phan cam
cong dan » cong san, cong tan, huong dan
co bien » co dien, so bien, bo bien

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

• Performing a fuzzy search may retrieve terms with similar spellings: co bien tinh - thanh tung ((quan nhung) or (thuat dung)) cong dan khoan cam~.
• If you are trying to use Boolean operators, they must be ALL CAPS: co bien tinh - thanh tung ((quan nhung) OR (thuat dung)) cong dan khoan cam.
• Adding a wildcard symbol may retrieve word variants: co bien tinh - thanh tung ((quan nhung) or (thuat dung)) cong dan khoan cam*.