Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hanh trang » thanh trung, canh tranh, minh trang
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
cua nhung » va nhung
hoc hieu » hoc thieu, hoc hien, doc hieu
cong van » cong vang, cong san, song van
than cao » thai cao, than cap, than sao
toan cao » toan ban, toan 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 hieu manh - ((hanh trang) OR (hanh trinh)) cua nhung cong van ((than cao) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - ((hanh trang) OR (hanh trinh)) cua nhung cong van ((than cao) OR (toan cao))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu manh - ((hanh trang) OR (hanh trinh)) cua nhung cong van ((than cao) or (toan cao))*".