Perhaps you should try some spelling variations:
hung vuong » hoang vuong
hieu xanh » chieu xanh, hieu nganh, dieu hanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
vuong dan » huong dan, tuong dan, xuong dan
tranh va » tranh van, trang va, trinh va
than cap » khan cap, thanh lap, thanh cac
toan cao » toan ban, toan tap
va hung » va nhung, van hung, va huong

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: doc ((hieu xanh) OR (hieu manh)) - canh tranh va hung vuong dan ((than cap) OR (toan cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu xanh) OR (hieu manh)) - canh tranh va hung vuong dan ((than cap) or (toan cao))~".
• Adding a wildcard symbol may retrieve word variants: doc ((hieu xanh) OR (hieu manh)) - canh tranh va hung vuong dan ((than cap) or (toan cao))*.