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 sac » thu sach, thu san, thu dac
ve pham » vi pham, v pham, ve phan
hieu ve » hieu va, hieu van
nang co » nang cao, nang doc, nang noi
thu xac » thau xay
co hoi » co hoc, co loi
di cua » dai cua, doi cua, de cua
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 sac) or (thu xac)) ky nang co hoi. hieu ve pham thuc ((day hanh) or (day nhanh)) di cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sac) OR (thu xac)) ky nang co hoi. hieu ve pham thuc ((day hanh) OR (day nhanh)) di cua tu.
• Adding a wildcard symbol may retrieve word variants: ((thu sac) or (thu xac)) ky nang co hoi. hieu ve pham thuc ((day hanh) or (day nhanh)) di cua tu*.