Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
tang luan » dung luan
tang cua » mang cua, hang cua, thong cua
cong tac » cong ty
tac than » tac thanh, tam than, tac nhan
than tap » toan tap, han tap, phan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu manh) or (chieu tinh)) - hanh ((tang cua) or (tang luan)) nhung cong tac than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (chieu tinh)) - hanh ((tang cua) OR (tang luan)) nhung cong tac than tap.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chieu tinh)) - hanh ((tang cua) or (tang luan)) nhung cong tac than tap*.