Perhaps you should try some spelling variations:
phan thuc » nhan thuc, phap thuc, pham thuc
thu sach » tu sach, thuat sach, thuoc sach
hieu van » hieu va, thien van, lieu va
van phan » van phong, van thanh, luan phan
thuc dan » thuc hanh, hoc dan, thuc vat
dan hanh » dang hanh, dan khanh, dan thanh
sach ky » sac ky, sach y, sach ty
nang co » nang cao, nang doc, nang noi
de cua » le cua, dieu cua
te cua » tue cua, le cua

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 hoc. hieu van phan thuc dan hanh ((de cua) OR (te cua)) te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ky nang co hoc. hieu van phan thuc dan hanh ((de cua) OR (te cua)) te".
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang co hoc. hieu van phan thuc dan hanh ((de cua) OR (te cua)) te*.