Perhaps you should try some spelling variations:
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
thu huong » thu cong
huong hoa » phuong hoa, hung hoa, luong khoa
hoa thanh » hoan thanh, ha thanh, hoc thanh
khau luan » khoa luan, phap luan, pham luan
cong hoa » dong hoa, dong hoc, hang hoa
hoi khau » thoi khac, hoi chu, hoi khoa
su sach » so sach
vu sach » vu bach, vu khach

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (vu sach)) hoc tap, nghien thu huong hoa thanh cong hoa xa hoi khau luan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) hoc tap, nghien thu huong hoa thanh cong hoa xa hoi khau luan van.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (vu sach)) hoc tap, nghien thu huong hoa thanh cong hoa xa hoi khau luan van*.