Perhaps you should try some spelling variations:
dong luat » dong luan, dong luc, dong cua
dung luat » dung luan, dung quat, dung cua
sach hoc » cach hoc, sach hoi, mach hoc
phap van » pham van, phan van, phap han
te sach » toc sach
hang do » hang doi, dang do, hang di
va phap » va phat, ban 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 tap, nghien cuu ((dong luat) OR (dung luat)) ngan hang do xa hoi va phap van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach hoc tap, nghien cuu ((dong luat) OR (dung luat)) ngan hang do xa hoi va phap van".
• Adding a wildcard symbol may retrieve word variants: te sach hoc tap, nghien cuu ((dong luat) OR (dung luat)) ngan hang do xa hoi va phap van*.