Perhaps you should try some spelling variations:
doi chieu » doc hieu, doi chi, mot chieu
cach dung » sach dung, cach mang, tac dung
bang cong » dang cong, bang song, hang cong
ho chieu » theo chieu, hoc thieu, mot chieu
dung cua » dung luan, dung cho
cua bang » chua bang, cua ban, cua dang
cong tan » cong tac, cong san, cong thanh
phan lap » phan dau

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)) xanh - cach dung cua bang cong tan ((phan lap) or (phan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) xanh - cach dung cua bang cong tan ((phan lap) OR (phan tu)).
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doi chieu)) xanh - cach dung cua bang cong tan ((phan lap) or (phan tu))*.