Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trong » hanh trang, anh trong, chinh trong
hinh trong » chinh trong, dinh trong, sinh trong
dong duong » tuong duong, cuong duong, dong thong
hoc thieu » toc thieu, hoc hien
duong van » duong va, luong va, dang van
toan tai » toan tap, doanh tai, toan cao
toan ban » van ban
su dong » su dung, tu dong, su dang

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 - ((hanh trong) or (hinh trong)) su dong duong van ((toan tai) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((hanh trong) OR (hinh trong)) su dong duong van ((toan tai) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((hanh trong) or (hinh trong)) su dong duong van ((toan tai) or (toan ban))*.