Perhaps you should try some spelling variations:
hanh khong » hang khong, xanh khong, khanh phong
toc nguoi » con nguoi
nguoi anh » nguoi lanh, nuoi anh, nguoi thanh
hoc thong » hoc thuong, hoc trong, hoc hong
cach thuc » anh thuc, cac thu
khong hai » khong phai, hong hai, khong ai
cach toc » cac toc, cach hoc, cach thoi
anh khoa » doanh khoa, hang khoa
khoa hoc » hoa hoc
tu cach » tu cac
thuc te » thuc tien
te hanh » te thanh, tu hanh, ve hanh

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 toc nguoi anh khoa hoc thong ) or ( tu cach thuc te hanh khong hai phong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu cach toc nguoi anh khoa hoc thong ) OR ( tu cach thuc te hanh khong hai phong )).
• Adding a wildcard symbol may retrieve word variants: (( tu cach toc nguoi anh khoa hoc thong ) or ( tu cach thuc te hanh khong hai phong ))*.