Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh thong » anh thong, hanh trong, hang thong
quan trong » gian trong
hoc thieu » toc thieu, hoc hien
quan dong » quang dong, quan long, quan hoang
hong anh » hoang anh, hong hanh, dong anh
tuan ban » tuan bang, toan ban, luan ban

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh thong ((quan trong) OR (quan dong)) hong anh tuan ban~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh thong ((quan trong) or (quan dong)) hong anh tuan ban*.