Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoc trieu » hoc thieu, hoc tieu, hoc dieu
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong tan » cong tac, cong san, cong thanh
toan cao » toan tap
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 trieu tinh - canh tranh cua nhung cong tan ((toan cao) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc trieu tinh - canh tranh cua nhung cong tan ((toan cao) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: hoc trieu tinh - canh tranh cua nhung cong tan ((toan cao) OR (toan ban))*.