Perhaps you should try some spelling variations:
pham thuc » phap thuc, pham chuc, nham thuc
thu sach » thuat sach, thuoc sach, thu hoach
thuc dan » thuc hanh, hoc dan, thuc vat
tu sach » su sach, te sach, tu cach
nang co » nang cao, nang doc, nang noi
hanh de » hanh ve, hanh kem
hanh di » hanh vi, hang di, danh di
v pham » vi pham, d pham
hieu v » hieu va, hieu ve, hieu 2
co hoi » co hoc, co loi
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu sach) or (tu sach)) ky nang co hoi. hieu v pham thuc dan ((hanh di) or (hanh de)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (tu sach)) ky nang co hoi. hieu v pham thuc dan ((hanh di) OR (hanh de)) cua te.
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (tu sach)) ky nang co hoi. hieu v pham thuc dan ((hanh di) or (hanh de)) cua te*.