Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
cua nhung » va nhung
doc hieu » toc thieu, hoc hien
cong san » cong tac
choi tu » hoi tu, cho tu, choi thuc
chon tu » con tu, cho tu, chon tao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) or (hoc thieu)) xanh - canh tranh cua nhung cong san ((choi tu) OR (chon tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (hoc thieu)) xanh - canh tranh cua nhung cong san ((choi tu) OR (chon tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) or (hoc thieu)) xanh - canh tranh cua nhung cong san ((choi tu) OR (chon tu))".
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (hoc thieu)) xanh - canh tranh cua nhung cong san ((choi tu) OR (chon tu))*.