Perhaps you should try some spelling variations:
hoc thiet » hoc thieu, hoc thuyet, hoc hien
tranh cua » doanh cua, manh cua
cong cong » cong dong, trong cong, dung cong
cong pham » cong phan, chong phap, cong ha
pham toan » pham tuan, pham tan, phap toan
ho chiet » ho chieu, ho thiet, hoa thiet
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: ((ho chiet) OR (hoc thiet)) tach - canh tranh cua cong cong pham toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chiet) OR (hoc thiet)) tach - canh tranh cua cong cong pham toan ban".
• Adding a wildcard symbol may retrieve word variants: ((ho chiet) OR (hoc thiet)) tach - canh tranh cua cong cong pham toan ban*.