Perhaps you should try some spelling variations:
hanh lam » thanh lap, hanh kem, hanh va
thi hanh » thi thanh
va triet » va trien, ve triet, cua triet
sach thi » sach thu, sach tai, sach thieu
van hanh » van thanh, ban hanh, van anh
su sach » so sach, vu sach
hanh xa » hanh va, hanh ma, hanh xu
hieu va » hieu qua
cam tuc » cam xuc, cam tu, nam thuc
tuc van » thuc van, truc van, tuc va
thiet » thieu

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 thi hanh xa hoi. ((hieu va) or (lieu va)) cam tuc van hanh lam ((va triet) OR (va thiet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach thi hanh xa hoi. ((hieu va) OR (lieu va)) cam tuc van hanh lam ((va triet) OR (va thiet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach thi hanh xa hoi. ((hieu va) or (lieu va)) cam tuc van hanh lam ((va triet) OR (va thiet))".
• Adding a wildcard symbol may retrieve word variants: su sach thi hanh xa hoi. ((hieu va) or (lieu va)) cam tuc van hanh lam ((va triet) OR (va thiet))*.