Perhaps you should try some spelling variations:
thanh thuc » thanh thuy, nhanh thuc, thach thuc
van thanh » ban thanh, van tuan
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
thuc van » thuc vat, thuc dan, thuc va
hoa hoi » khoa hoi, hoa hoc, hoa doi
danh di » xanh di, danh dien, danh gia
danh du » danh dau, danh tu, dinh du
ho hoi » hoc hoi, hoi hoi, co hoi
su cac » tu cac, su cao, su can

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

• Performing a fuzzy search may retrieve terms with similar spellings: su cac ky nang ((ho hoi) or (hoa hoi)). hieu van thanh thuc van ((danh di) OR (danh du)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cac ky nang ((ho hoi) OR (hoa hoi)). hieu van thanh thuc van ((danh di) OR (danh du)) cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su cac ky nang ((ho hoi) or (hoa hoi)). hieu van thanh thuc van ((danh di) OR (danh du)) cua triet*".