Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
danh vai » danh sai, doanh van, dang van
thuc day » thuc dan, thuc vat
sach ty » sach y, sach tu, sach thu
danh va » doanh va, hanh va, anh va
tu sach » thu sach, su sach, te sach
thuc va » thuc vat, thuc dan
hieu va » lieu va, hieu qua
nang co » nang cao, nang doc, nang noi
ty nang » ky nang, ty xang, ty hang
co hoi » co hoc, co loi
va am » va lam, va cam

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty nang co hoi. hieu va am ((thuc va) OR (thuc day)) ((danh vai) OR (danh va)) cua triet~".
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang co hoi. hieu va am ((thuc va) OR (thuc day)) ((danh vai) OR (danh va)) cua triet*.