Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh thuc » trinh tu, trinh thi
thuc hang » thuc hanh, thu hang, phuc hang
cong vang » cong lang, cong quang, cong ngang
ho trieu » mot trieu, 25 trieu, 30 trieu
cong van » cong san, song van, cong tan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho trieu tinh - hanh trinh thuc hang ((cong van) or (cong vang)) ((tuyen tap) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho trieu tinh - hanh trinh thuc hang ((cong van) OR (cong vang)) ((tuyen tap) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: ho trieu tinh - hanh trinh thuc hang ((cong van) or (cong vang)) ((tuyen tap) or (toan tap))*.