Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
vien nganh » vien thanh
hanh trang » thanh trung, canh tranh, hanh trinh
cua dung » cua dang, cua dong, cua rung
qua dung » quang dung, su dung, qua song
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
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) or (vien nganh)) - hanh trang ((cua dung) or (qua dung)) cong van toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (vien nganh)) - hanh trang ((cua dung) OR (qua dung)) cong van toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (vien nganh)) - hanh trang ((cua dung) or (qua dung)) cong van toan tap*.