Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, mot chieu, thi chieu
tranh cua » doanh cua, manh cua
cua nhung » va nhung
ho chieu » theo chieu, hoc thieu, mot chieu
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van phan
phan dau » phan tu, hang dau
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((doi chieu) OR (ho chieu))) or (doi chi)) xanh - canh tranh cua nhung cong tan phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((doi chieu) OR (ho chieu))) OR (doi chi)) xanh - canh tranh cua nhung cong tan phan dau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((doi chieu) OR (ho chieu))) or (doi chi)) xanh - canh tranh cua nhung cong tan phan dau".
• Adding a wildcard symbol may retrieve word variants: ((((doi chieu) OR (ho chieu))) or (doi chi)) xanh - canh tranh cua nhung cong tan phan dau*.