Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
canh trinh » canh tranh, hanh trinh, canh tinh
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
trinh van » trinh han, trinh quan, trinh toan
pho cam » pho tam, pho nam, pho cap

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

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