Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trinh » canh tranh, hanh chinh
chieu qua » khien qua, hieu cua, hieu quan
trinh cua » tinh cua, trinh luat, trinh quan
cua nhung » va nhung
luan phan » luan van, luan hoan
van phong » van dong, hai phong

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 qua) or (hieu qua)) - hanh trinh cua nhung cong ((luan phan) or (van phong)) dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu qua) OR (hieu qua)) - hanh trinh cua nhung cong ((luan phan) OR (van phong)) dau.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu qua) or (hieu qua)) - hanh trinh cua nhung cong ((luan phan) or (van phong)) dau*.