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