Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh doanh » hang doanh, chinh doanh, doanh doanh
trinh toan » tinh toan, thanh toan, trinh quan
doi chieu » doc hieu, doi chi, mot chieu
trinh han » trinh quan
nhan dan » phan dau, gian dan, nhan tai
dan cong » dang cong, van cong, dan dong

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu tinh - hanh doanh nhan dan cong ((trinh toan) or (trinh han)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu tinh - hanh doanh nhan dan cong ((trinh toan) OR (trinh han)) cau.
• Adding a wildcard symbol may retrieve word variants: doi chieu tinh - hanh doanh nhan dan cong ((trinh toan) or (trinh han)) cau*.