Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
quan long » quan lang, quan dong, quan hoang
gian lang » gian dan
ho chieu » theo chieu, hoc thieu, mot chieu
trong ca » trong cac, trong nha
ca luan » cu luan, ca lua, ca quan

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 sach - hanh trinh ((quan long) or (gian lang)) trong ca luan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh trinh ((quan long) OR (gian lang)) trong ca luan van.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh trinh ((quan long) or (gian lang)) trong ca luan van*.