Perhaps you should try some spelling variations:
hieu nganh » hiem ngan, hieu manh, nghiep nganh
vien nganh » vien thanh
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh qua » tranh cua, thanh qua, trinh qua
trong van » trong cac
qua dung » quang dung, su dung, qua song
van tuan » van quan, van ban, anh tuan
tuan cu » tuan tu, quan cua, tuan thu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((((hieu nganh) OR (vien nganh))) or (chieu xanh)) - hanh tranh qua dung trong van tuan cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((hieu nganh) OR (vien nganh))) OR (chieu xanh)) - hanh tranh qua dung trong van tuan cu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((((hieu nganh) OR (vien nganh))) or (chieu xanh)) - hanh tranh qua dung trong van tuan cu*".