Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh tri » thanh tri, hanh tai, hanh trinh
te sach » toc sach
sach tu » sach thu, cach tu, sach ty
tu nong » tu dong, tu cong, tu tong
nong xa » song xa, dong xa, nong va
hieu va » lieu va, hieu qua
duc van » duc va, duc manh, duc phan
va co » vo co

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 tu nong xa hoi. hieu va co ((duc van) or (duc tan)) hanh tri cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tu nong xa hoi. hieu va co ((duc van) OR (duc tan)) hanh tri cua triet.
• Adding a wildcard symbol may retrieve word variants: te sach tu nong xa hoi. hieu va co ((duc van) or (duc tan)) hanh tri cua triet*.