Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, lieu vien
cac nuoc » dat nuoc, cua nuoc
cap nuoc » dat nuoc
so sanh » do sanh
sanh ky » hanh ky, sang ky, nganh ky
cao hoi » cau hoi, co hoi, cao hoc
ca cua » co cua
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sanh ky nang cao hoi. hieu vien ((cac nuoc) or (((cap nuoc) or (hoc nuoc)))) cac dan ca cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh ky nang cao hoi. hieu vien ((cac nuoc) OR (((cap nuoc) OR (hoc nuoc)))) cac dan ca cua tu.
• Adding a wildcard symbol may retrieve word variants: so sanh ky nang cao hoi. hieu vien ((cac nuoc) or (((cap nuoc) or (hoc nuoc)))) cac dan ca cua tu*.