Perhaps you should try some spelling variations:
ve triet » va trien, su triet
thi hanh » thi thanh
hanh nam » thanh nam, hanh lam, hanh ngay
cam thuc » am thuc, nam thuc, cam thu
hanh xu » hanh tu, hanh sua, hanh cua
hieu ve » hieu va, hieu van
te sach » toc sach
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
tu sach » thu sach, su sach, tu cach
xu hoi » xa hoi, lu hoi, vu hoi
ve cam » ve cham, ve cac, va cam
nam ve » nam va, nam he, nam v

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 xu hoi. hieu ve cam thuc va hanh nam ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) thi hanh xu hoi. hieu ve cam thuc va hanh nam ve triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) thi hanh xu hoi. hieu ve cam thuc va hanh nam ve triet*.