Perhaps you should try some spelling variations:
doanh chong » doanh chung, doanh thuong, nhanh chong
long luat » cong suat, tong luan, long cua
hang luan » tang luan, dung luan
mach hoc » cach hoc, dich hoc, anh hoc
chong do » chong doc, cuong do, chong co
van phan » van phong, van thanh, luan phan
phan van » pham van, thanh van, luan van
ke mach » ke hoach
hoi van » hoi va, hoi dan, hai van
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 (hang luan)) doanh chong do xa hoi van phan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ke mach hoc tap, nghien cuu ((long luat) OR (hang luan)) doanh chong do xa hoi van phan van.
• Adding a wildcard symbol may retrieve word variants: ke mach hoc tap, nghien cuu ((long luat) or (hang luan)) doanh chong do xa hoi van phan van*.