Perhaps you should try some spelling variations:
khong cong » thong cong, khong cang, chong cong
trung cat » trung cap, trung can, trung cau
trung ca » trung cap, truong ca, trung cua
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap
ho cuu » ho chu, ho cua, so cuu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho cuu tinh - hanh ((trung cat) or (trung ca)) khong cong dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho cuu tinh - hanh ((trung cat) OR (trung ca)) khong cong dan than cau.
• Adding a wildcard symbol may retrieve word variants: ho cuu tinh - hanh ((trung cat) or (trung ca)) khong cong dan than cau*.