Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trinh » canh tranh, hanh chinh
trinh quan » tinh quang, trinh luat, trinh han
quan thong » quang thong, quan trong, xuan thong
thong dong » thong duong, thuong dong, thong cong
hoc thieu » toc thieu, hoc hien
dong san » cong san, dong bang, dong von
toan tai » doanh tai, toan ban, toan cao
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: hoc thieu xanh - hanh trinh quan thong dong san ((toan tai) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh trinh quan thong dong san ((toan tai) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh trinh quan thong dong san ((toan tai) or (toan tap))*.