Perhaps you should try some spelling variations:
doanh cuong » doan cuong, doanh thuong, dinh cuong
long luat » cong suat, long cua, cong luan
tong luan » tang luan, dung luan, hang luan
mach hoc » cach hoc, dich hoc, anh hoc
cuong do » cuong vo, huong doi, duong dao
ke mach » ke hoach
va pham » van pham, va phat, va phap
do xa » doi xa, do va, o xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: ke mach hoc tap, nghien cuu ((long luat) or (tong luan)) doanh cuong do xa hoi va pham van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ke mach hoc tap, nghien cuu ((long luat) OR (tong luan)) doanh cuong do xa hoi va pham van.
• Adding a wildcard symbol may retrieve word variants: ke mach hoc tap, nghien cuu ((long luat) or (tong luan)) doanh cuong do xa hoi va pham van*.