Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tranh cua » doanh cua, manh cua
cua nhung » va nhung
hoc dieu » hoc thieu, hoc hien
hoc sieu » hoc thieu, hoc hien, hoc su
tran van » luan van
san van » tan van, luan van, dang van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc dieu) or (hoc sieu)) tinh - canh tranh cua nhung cong ((san van) OR (tran van)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc dieu) OR (hoc sieu)) tinh - canh tranh cua nhung cong ((san van) OR (tran van)) ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc dieu) or (hoc sieu)) tinh - canh tranh cua nhung cong ((san van) OR (tran van)) ban".
• Adding a wildcard symbol may retrieve word variants: ((hoc dieu) or (hoc sieu)) tinh - canh tranh cua nhung cong ((san van) OR (tran van)) ban*.