Perhaps you should try some spelling variations:
xach tay » canh tay
nang co » nang cao, nang doc, nang noi
hieu va » lieu va, hieu qua
cau luc » cau truc, cau phuc
va danh » va dinh, va dan, va hanh
danh vi » hanh vi, dinh vi, danh di
co hoi » co hoc, co loi
va cau » van cau, va cac, va dau
luc va » duc va, tuc va, loc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach y) or (xach tay)) nang co hoi. hieu va cau luc va danh vi ((hoa viet) or (cua vat))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach y) OR (xach tay)) nang co hoi. hieu va cau luc va danh vi ((hoa viet) OR (cua vat)).
• Adding a wildcard symbol may retrieve word variants: tu ((sach y) or (xach tay)) nang co hoi. hieu va cau luc va danh vi ((hoa viet) or (cua vat))*.