Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
canh manh » lanh manh, canh tranh, cach mang
cua nhung » va nhung
ho chieu » theo chieu, doi chieu, mot chieu
manh cua » doanh cua, ban cua
van than » van thanh, van thang, van tuan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) xanh - canh manh cua nhung cong ((van than) OR (tinh toan)) tap~.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) xanh - canh manh cua nhung cong ((van than) or (tinh toan)) tap*.