Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
tranh va » tranh van, trang va, trinh va
cong tac » cong ty
chon tu » con tu, choi tu, chon tao
cho tu » choi tu, cho cu, cho du

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

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