Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
hanh lam » thanh lap, hanh kem, hanh va
thi hanh » thi thanh
va hanh » van hanh, va thanh, va danh
thuc va » thuc vat, thuc dan, thuc day
tu sach » thu sach, su sach, tu cach
hanh xa » hanh va, hanh ma, hanh xu
te sach » toc sach
va cam » va cham, va cac, va cao
lam va » nam va, dam va, lam ha
ve cam » ve cham, ve cac, ve cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (te sach)) thi hanh xa hoi. hieu ((ve cam) or (va cam)) thuc va hanh lam va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) thi hanh xa hoi. hieu ((ve cam) OR (va cam)) thuc va hanh lam va triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) thi hanh xa hoi. hieu ((ve cam) or (va cam)) thuc va hanh lam va triet*.