Perhaps you should try some spelling variations:
khong cong » thong cong, khong cang, chong cong
doi chieu » doc hieu, doi chi, mot chieu
ho chieu » theo chieu, hoc thieu, mot chieu
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
toan cau » toan cao, toan ban, toan tap
nang du » nang tu, nang luc, nang doc

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (doi chieu)) xanh - ganh ((nang suat) OR (nang du)) khong cong van toan cau~".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (doi chieu)) xanh - ganh ((nang suat) OR (nang du)) khong cong van toan cau*.