Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh toan, thanh tra
khang cong » hang cong, thanh cong, dang cong
doi chieu » doc hieu, doi chi, mot chieu
hanh tram » hanh tam, hanh trang, thanh tra
van khang » van khanh, van thanh, van quang
ho chieu » theo chieu, hoc thieu, mot chieu
cong tai » cong thai, cong tac, dong tai
tai phan » tai thanh, tai phong, tai ngan
phan tap » phan lap, han tap, pha 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 chieu) OR (doi chieu)) tinh - ((hanh tram) or (thanh tran)) van khang cong tai phan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) tinh - ((hanh tram) OR (thanh tran)) van khang cong tai phan tap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (doi chieu)) tinh - ((hanh tram) or (thanh tran)) van khang cong tai phan tap*".