Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
nhung cong » dung cong, thong cong, hang cong
nhu phuong » thu phuong, nhung phuong, thi phuong
hien tach » thien hach, chiet tach, vien bach
trinh cua » tinh cua, trinh luat, trinh quan
dan toan » van toan, dan than, manh toan
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 tach - hanh trinh cua ((nhung cong) or (nhu phuong)) dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien tach - hanh trinh cua ((nhung cong) OR (nhu phuong)) dan toan ban*.