Perhaps you should try some spelling variations:
doanh chong » doanh chung, doanh thuong, nhanh chong
dong luat » dong luan, dung luat, dong luc
sach hoc » cach hoc, mach hoc, sach duoc
sach hoi » sach doi, sach moi, cach thoi
cuu dong » cuu cong, cuu tong, cuu long
chong do » chong doc, cuong do, chong co
phan van » pham van, thanh van, luan van
va phan » van phan, 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: te ((sach hoc) OR (sach hoi)) tap, nghien cuu dong luat doanh chong do xa hoi va phan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach hoc) OR (sach hoi)) tap, nghien cuu dong luat doanh chong do xa hoi va phan van".
• Adding a wildcard symbol may retrieve word variants: te ((sach hoc) OR (sach hoi)) tap, nghien cuu dong luat doanh chong do xa hoi va phan van*.