Perhaps you should try some spelling variations:
chong cong » cong cong, thong cong, cuong cong
thuc chong » thuc chung, thuc khong, thuoc khong
hoc thieu » hoc hien
tinh than » tinh thanh, tinh toan, tinh thai
than thuc » thuan thuc, nhan thuc, toan thuc
cong tan » cong tac, cong san, cong thanh
phan lap » phan dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thieu) or (toc thieu)) anh - tinh than thuc chong cong tan ((phan lap) or (phan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) anh - tinh than thuc chong cong tan ((phan lap) OR (phan tu)).
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (toc thieu)) anh - tinh than thuc chong cong tan ((phan lap) or (phan tu))*.