Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, mot chieu
tranh cua » doanh cua, manh cua
cua nhung » va nhung
san chang » ban hang, dan chan, van khang
ho chieu » theo chieu, hoc thieu, mot chieu
san chon » san cho, san choi, nang chon

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)) tinh - canh tranh cua nhung cong ((san chon) or (san chang)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) tinh - canh tranh cua nhung cong ((san chon) OR (san chang)) tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (doi chieu)) tinh - canh tranh cua nhung cong ((san chon) or (san chang)) tu".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (doi chieu)) tinh - canh tranh cua nhung cong ((san chon) or (san chang)) tu*.