Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
va hanh » van hanh, va thanh, va danh
nang ma » tang ma, sang ma, nang cao
le nam » ly nam, he nam, te nam
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa
ca dan » cac dan, ca dao
di cua » dai cua, doi cua, de cua
su sac » su sach, su cac, su xac
le na » le va, le ta, le ha

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky nang ma hoi. hieu ((le nam) OR (le na)) thuc ((va hanh) or (ca dan)) di cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang ma hoi. hieu ((le nam) OR (le na)) thuc ((va hanh) OR (ca dan)) di cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky nang ma hoi. hieu ((le nam) OR (le na)) thuc ((va hanh) or (ca dan)) di cua viet".
• Adding a wildcard symbol may retrieve word variants: su sac ky nang ma hoi. hieu ((le nam) OR (le na)) thuc ((va hanh) or (ca dan)) di cua viet*.