Perhaps you should try some spelling variations:
hoc chiet » hoc nhiet, hoc hien, hoc viet
hoc thiet » hoc thieu, hoc thuyet, hoc hien
tranh cua » doanh cua, manh cua
hang cong » dang cong, bang cong, thanh cong
hang nong » thang long, han tong
tan toan » tan tran, tap toan, van 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 chiet) or (hoc thiet)) tach - canh tranh cua ((hang cong) OR (hang nong)) tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chiet) OR (hoc thiet)) tach - canh tranh cua ((hang cong) OR (hang nong)) tan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chiet) or (hoc thiet)) tach - canh tranh cua ((hang cong) OR (hang nong)) tan toan ban".
• Adding a wildcard symbol may retrieve word variants: ((hoc chiet) or (hoc thiet)) tach - canh tranh cua ((hang cong) OR (hang nong)) tan toan ban*.