Perhaps you should try some spelling variations:
van dinh » van minh, va dinh, xuan dinh
toc sac » toc sach, toc san, hoc sach
hieu ve » hieu van
hieu va » lieu va, hieu qua
cam luc » cam xuc, cau luc
lam cua » nam cua, lam chat
sac ky » cac ky, sai ky
cua te » cua tu
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: toc sac ky nang x hoi. ((hieu ve) or (hieu va)) cam luc ((van dinh) OR (van dich)) lam cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sac ky nang x hoi. ((hieu ve) OR (hieu va)) cam luc ((van dinh) OR (van dich)) lam cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sac ky nang x hoi. ((hieu ve) or (hieu va)) cam luc ((van dinh) OR (van dich)) lam cua te*".