Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
danh gia » dan gian
hanh gia » thanh gian, hinh giao, canh giac
duc van » duc va, duc tan, duc manh
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
ve cac » vien cac
x hoi » xa hoi, o hoi, x ho

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 ky nang x hoi. hieu ((ve cac) or (va cac)) duc van ((hanh gia) OR (danh gia)) cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang x hoi. hieu ((ve cac) OR (va cac)) duc van ((hanh gia) OR (danh gia)) cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang x hoi. hieu ((ve cac) or (va cac)) duc van ((hanh gia) OR (danh gia)) cua viet".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang x hoi. hieu ((ve cac) or (va cac)) duc van ((hanh gia) OR (danh gia)) cua viet*.