Perhaps you should try some spelling variations:
pham thuc » phap thuc, pham chuc, nham thuc
day nhanh » day thanh, duy nhanh, dac nhan
day hanh » day thanh, dao hanh, day manh
thu san » thuy san, thu ban, phu san
nang co » nang cao, nang doc, nang noi
v pham » vi pham, d pham
hieu v » hieu va, hieu ve, hieu 2
san ky » sang ky, van ky, dan ky
co hoi » co hoc, co loi
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu san ky nang co hoi. hieu v pham thuc ((day hanh) or (day nhanh)) di ((cua te) OR (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu san ky nang co hoi. hieu v pham thuc ((day hanh) OR (day nhanh)) di ((cua te) OR (cua tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu san ky nang co hoi. hieu v pham thuc ((day hanh) or (day nhanh)) di ((cua te) OR (cua tu))".
• Adding a wildcard symbol may retrieve word variants: thu san ky nang co hoi. hieu v pham thuc ((day hanh) or (day nhanh)) di ((cua te) OR (cua tu))*.