Perhaps you should try some spelling variations:
canh trang » canh tranh, hanh trang, banh trang
thong cong » trong cong, tong cong, thong thong
hien hanh » dieu hanh
trang va » tran van, hang va
pho cau » pho cap, pho cam, pho can
pha cau » phan cau, phap cau, pha cac
ung » cung
dung » dcung

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien hanh - canh trang va ((ung dung) or (thong cong)) thanh ((pho cau) or (pha cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien hanh - canh trang va ((ung dung) OR (thong cong)) thanh ((pho cau) OR (pha cau)).
• Adding a wildcard symbol may retrieve word variants: hoc hien hanh - canh trang va ((ung dung) or (thong cong)) thanh ((pho cau) or (pha cau))*.