Perhaps you should try some spelling variations:
nhan thuc » nhan luc, dan thuc, toan thuc
sach dao » lanh dao
sach ha » sach nha, sach han, sach xa
tang ma » mang may, tang van
va nhan » van nhan, ca nhan, va phan
thuc xa » thuc xay, tuc xa, thuc va
xa xanh » xa thanh, cay xanh, mau xanh
xanh di » danh di, vanh dai, xanh tai
di cua » dai cua, doi cua, de cua
cua su » qua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach dao) or (sach ha)) tang ma hoa. lieu va nhan thuc xa xanh di cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach dao) OR (sach ha)) tang ma hoa. lieu va nhan thuc xa xanh di cua su.
• Adding a wildcard symbol may retrieve word variants: su ((sach dao) or (sach ha)) tang ma hoa. lieu va nhan thuc xa xanh di cua su*.