Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh tranh » canh tranh, hanh trang, lanh tranh
hanh trinh » canh tranh, hanh chinh
trung hong » trung uong, trung dong, trung hung
hoc thieu » toc thieu, hoc hien
cua trung » cua truong, xuan trung, cua nhung
hong van » hoang van, thong van, phong van
tuan tap » toan tap, tuyen tap, toan tai
tuan tai » toan tai, quan tai, tan tai

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 tranh) OR (hanh trinh)) cua trung hong van ((tuan tap) OR (tuan tai))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - ((hanh tranh) or (hanh trinh)) cua trung hong van ((tuan tap) OR (tuan tai))~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((hanh tranh) or (hanh trinh)) cua trung hong van ((tuan tap) OR (tuan tai))*.