Perhaps you should try some spelling variations:
dong luat » dong luan, dong luc, dong cua
dung luat » dung luan, dung quat, dung cua
ngan nong » nganh nong, nganh cong, ngan hang
ban thanh » ban hanh, ban hang
thanh van » thanh san, thanh toan, thanh phan
cach hoc » cach thuc, cach thoi, dich hoc
tu cach » tu cac
thon xa » thong xa, thoi xa, thong xay
tai ban » tai san, tai ngan, tai benh
xa tai » xa thai, va tai, xa tri

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cach hoc tap, nghien cuu ((dong luat) OR (dung luat)) ngan nong thon xa tai ban thanh van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cach hoc tap, nghien cuu ((dong luat) OR (dung luat)) ngan nong thon xa tai ban thanh van".
• Adding a wildcard symbol may retrieve word variants: tu cach hoc tap, nghien cuu ((dong luat) OR (dung luat)) ngan nong thon xa tai ban thanh van*.