Perhaps you should try some spelling variations:
dieu hien » dieu khien, dieu kien, bieu hien
hanh vai » hanh vi, hanh va, hanh tai
su sach » so sach, vu sach
va hanh » van hanh, va thanh, va danh
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
sach ky » sac ky, sach y, sach ty
cua te » cua tu
cua su » qua su
cac co » cac cong
cac lo » cac lop, cac bo, cac 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 sach ky lang xa hoi. dieu hien ((cac lo) or (cac co)) va hanh vai ((cua te) or (cua su))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky lang xa hoi. dieu hien ((cac lo) OR (cac co)) va hanh vai ((cua te) OR (cua su)).
• Adding a wildcard symbol may retrieve word variants: su sach ky lang xa hoi. dieu hien ((cac lo) or (cac co)) va hanh vai ((cua te) or (cua su))*.