Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thuc van » thuc vat, thuc dan, thuc va
cam thuc » am thuc, nam thuc, cam thu
van anh » van thanh, tuan anh, van minh
hieu ve » hieu va, hieu van
hoi hoi » hoi hoc, hoc hoi, hoi doi
hoc doi » hoc dai, hoc noi, hoc moi
hoa hoi » khoa hoi, hoa hoc, hoa doi
xac ky » cac ky, sac ky, bac ky
ve cam » ve cham, ve cac, va cam
anh te » anh tu, anh ta, anh ve
te cua » tue cua, le cua, de cua
su xac » pu xac, su cac

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

• If you are trying to use Boolean operators, they must be ALL CAPS: su xac ky nang ((((hoa hoi) OR (hoc doi))) OR (hoi hoi)). hieu ve cam thuc van anh te cua triet~.
• Adding a wildcard symbol may retrieve word variants: su xac ky nang ((((hoa hoi) or (hoc doi))) or (hoi hoi)). hieu ve cam thuc van anh te cua triet*.