Perhaps you should try some spelling variations:
dan thanh » dang thanh, danh thanh, ban thanh
pham thuc » phap thuc, pham chuc, nham thuc
thu sach » tu sach, thuat sach, thuoc sach
dan hanh » dang hanh, dan khanh, ban hanh
sach ky » sac ky, sach y, sach ty
nang co » nang cao, nang doc, nang noi
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
doi cua » dai cua, hoi cua
co loi » co hoi
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 ky nang co loi. hieu ve pham thuc ((dan hanh) or (dan thanh)) doi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang co loi. hieu ve pham thuc ((dan hanh) OR (dan thanh)) doi cua te.
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang co loi. hieu ve pham thuc ((dan hanh) or (dan thanh)) doi cua te*.