Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, mot chieu
ho chieu » theo chieu, hoc thieu, mot chieu
hanh han » hanh nhan, hanh phan, hanh san
cong san » cong tac
toan tap » toan ban
han va » hang va, hanh va, nhan va

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)) sang - hanh han va nhung cong san ((toan tap) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) sang - hanh han va nhung cong san ((toan tap) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doi chieu)) sang - hanh han va nhung cong san ((toan tap) or (van ban))*.