Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
nhung cong » dung cong, thong cong, hang cong
hanh tang » anh tang, hanh mang, hanh tung
cua nhung » va nhung
hoc dien » hoc hien, hoc vien, hoc dieu
dien dan » hien dai, vien dai, gian dan
cong san » cong tac
san than » sang than, san thanh, ban than
than tap » toan tap, han tap, phan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc dien dan - ((hanh tang) or (hanh trang)) cua nhung cong san than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc dien dan - ((hanh tang) OR (hanh trang)) cua nhung cong san than tap.
• Adding a wildcard symbol may retrieve word variants: hoc dien dan - ((hanh tang) or (hanh trang)) cua nhung cong san than tap*.