Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
hien cac » thien cac, vien cac, hieu cac
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
lap cua » lai cua, tap cua, ap cua
lam cua » nam cua, lam chat
x hoi » xa hoi, o hoi, x ho
lo va » lo van, lao va, ly va

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky nang x hoi. hieu hien cac ((lo va) or (tao va)) thanh ((lap cua) or (lam cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang x hoi. hieu hien cac ((lo va) OR (tao va)) thanh ((lap cua) OR (lam cua)) te.
• Adding a wildcard symbol may retrieve word variants: su sach ky nang x hoi. hieu hien cac ((lo va) or (tao va)) thanh ((lap cua) or (lam cua)) te*.