Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh lai » hanh lam, hanh tai, thanh lap
thi hanh » thi thanh
lai cua » dai cua, hai cua, lai chau
thuc va » thuc vat, thuc dan, thuc day
tu sach » thu sach, su sach, tu cach
hieu ve » hieu va, hieu van
hanh xa » hanh va, hanh ma, hanh xu
te sach » toc sach
tuc va » truc va, tuc xa, duc va
ve cam » ve cham, ve cac, va cam

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 ((tuc va) OR (thuc va)) hanh lai cua 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 ((tuc va) OR (thuc va)) hanh lai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (te sach)) thi hanh xa hoi. hieu ve cam ((tuc va) OR (thuc va)) hanh lai cua triet".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) thi hanh xa hoi. hieu ve cam ((tuc va) OR (thuc va)) hanh lai cua triet*.