Perhaps you should try some spelling variations:
hoc phien » hoc hien, thuoc phien, hoc nghien
phien nam » hien nay, phien ban, vien nam
danh tac » canh tac, danh bac, doanh tai
hoa hien » hoc hien, hoa bien, hoan thien
hien nam » hien nay, vien nam, mien nam
danh cac » dinh cac, danh ca, hanh cac
cac vang » cac dang, tac vang, cac vung
vang hoa » vang khoa, hang hoa, nang hoa
cong tac » cong ty
cong cac » cuong cac, cong cau, trong cac
tac van » tac vang, tac va, tac can
cac van » cac dan

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((( danh tac van hoa hien nam ) or ( danh cac vang hoa hien nam ))) or ((( cong tac van hoc phien nam ) OR ( cong cac van hoc phien nam ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((( danh tac van hoa hien nam ) OR ( danh cac vang hoa hien nam ))) OR ((( cong tac van hoc phien nam ) OR ( cong cac van hoc phien nam )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( danh tac van hoa hien nam ) or ( danh cac vang hoa hien nam ))) or ((( cong tac van hoc phien nam ) OR ( cong cac van hoc phien nam ))))".
• Adding a wildcard symbol may retrieve word variants: (((( danh tac van hoa hien nam ) or ( danh cac vang hoa hien nam ))) or ((( cong tac van hoc phien nam ) OR ( cong cac van hoc phien nam ))))*.