Perhaps you should try some spelling variations:
tieu trinh » tien trinh, tien thinh, trieu tinh
hang cong » dang cong, hang nong, bang cong
tang cua » mang cua, hang cua, tang luan
manh cua » doanh cua, ban 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

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu trinh - hanh ((tang cua) or (manh cua)) hang cong dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu trinh - hanh ((tang cua) OR (manh cua)) hang cong dan than cau*.