Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
cong thanh » dong thanh, cong trinh, cong tan
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
cac dung » cach dung, cac duong, tac dung
dan tay » ban tay, dao tay, gian tay
man tap » han tap, toan 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 chieu xanh - ((thanh tung) or (thanh cong)) cac dung cong thanh ((dan tay) or (man tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - ((thanh tung) OR (thanh cong)) cac dung cong thanh ((dan tay) OR (man tap)).
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - ((thanh tung) or (thanh cong)) cac dung cong thanh ((dan tay) or (man tap))*.