Perhaps you should try some spelling variations:
ve triet » va trien, su triet
cam thuc » am thuc, nam thuc, cam thu
hanh nam » thanh nam, hanh lam, hanh ngay
van hanh » van thanh, ban hanh, van anh
thuc van » thuc vat, thuc dan, thuc va
thi hanh » thi thanh
hanh xu » hanh tu, hanh sua, hanh cua
hieu ve » hieu va, hieu van
te sach » toc sach
tu cach » tu cac
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 cach) or (te sach)) thi hanh xu hoi. hieu ve cam thuc van hanh nam ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (te sach)) thi hanh xu hoi. hieu ve cam thuc van hanh nam ve triet.
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (te sach)) thi hanh xu hoi. hieu ve cam thuc van hanh nam ve triet*.