Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu
doi chieu » doc hieu, doi chi, ho chieu
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong tac » cong ty
tac tan » tac can, tac van, tat tan
tan tap » toan tap, han tap, tan tat

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((hoc thieu) or (hoc hien))) or (doi chieu)) xanh - canh tranh cua nhung cong tac tan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((hoc thieu) OR (hoc hien))) OR (doi chieu)) xanh - canh tranh cua nhung cong tac tan tap.
• Adding a wildcard symbol may retrieve word variants: ((((hoc thieu) or (hoc hien))) or (doi chieu)) xanh - canh tranh cua nhung cong tac tan tap*.