Perhaps you should try some spelling variations:
thanh tinh » thanh binh, nhanh tinh, than kinh
chat thong » chat phong, chat trong, nhat thuong
chat chong » chat phong, chat luong, chat long
hien hanh » dieu hanh
dong von » dung von, dong co, dong hoc
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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 - thanh tinh ((chat thong) or (chat chong)) dong von ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien hanh - thanh tinh ((chat thong) OR (chat chong)) dong von ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc hien hanh - thanh tinh ((chat thong) or (chat chong)) dong von ((toan cau) or (toan ban))*.