Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh dung » thanh dung, anh dung, manh dung
hanh dong » anh dong, ha dong
dung cong » dung trong
cong van » cong vang, cong san, song van
toan cao » toan ban
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu xanh - ((hanh dung) OR (hanh dong)) su dung cong van ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu xanh - ((hanh dung) OR (hanh dong)) su dung cong van ((toan cao) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc thieu xanh - ((hanh dung) OR (hanh dong)) su dung cong van ((toan cao) or (toan tap))".
• Adding a wildcard symbol may retrieve word variants: toc thieu xanh - ((hanh dung) OR (hanh dong)) su dung cong van ((toan cao) or (toan tap))*.