Perhaps you should try some spelling variations:
van khanh » van thanh, van anh, van phan
van nhanh » van thanh, van nhan, van nhang
hieu van » hieu va, thien van, lieu va
van hanh » van thanh, ban hanh, van anh
van cam » van nam, van lam, van cau
cam tuc » cam xuc, cam tu, nam thuc
co viet » so viet, o viet, hoc viet
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
thi co » thi mo, thi cu, thi bo
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: su sac ky nang x hoi. hieu van cam tuc ((van nhanh) or (((van khanh) OR (van hanh)))) thi co viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang x hoi. hieu van cam tuc ((van nhanh) OR (((van khanh) OR (van hanh)))) thi co viet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky nang x hoi. hieu van cam tuc ((van nhanh) or (((van khanh) OR (van hanh)))) thi co viet*".