Perhaps you should try some spelling variations:
cong tieng » trong tieng, cong chieng, vung tieng
thanh phan » thanh pho, thanh san, thanh toan
phan cong » thanh cong
tieng van » tieng han, tien van, tieng anh
dan thanh » dang thanh, danh thanh, ban thanh
doc hieu » hoc thieu, hoc hien
van gian » van giang, dan gian, van giao
gian dan » gian lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) or (toc thieu)) tinh - phan cong tieng van gian dan thanh phan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (toc thieu)) tinh - phan cong tieng van gian dan thanh phan.
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (toc thieu)) tinh - phan cong tieng van gian dan thanh phan*.