Perhaps you should try some spelling variations:
khien cac » hien cac, khien cau, thien cac
thanh vai » thanh hai, thanh van, thanh tai
vai cua » dai cua, hai cua, lai cua
sach tu » sach thu, cach tu, sach ty
nang xa » nang x, lang xa, nang ma
sach ky » sac ky, sach y, sach ty
cua te » cua tu
do va » do van, so va
co va » co ma, so va, cu 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) or (sach tu)) nang xa hoi. dieu khien cac ((co va) OR (do va)) thanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ky) OR (sach tu)) nang xa hoi. dieu khien cac ((co va) OR (do va)) thanh vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ky) or (sach tu)) nang xa hoi. dieu khien cac ((co va) OR (do va)) thanh vai cua te".
• Adding a wildcard symbol may retrieve word variants: su ((sach ky) or (sach tu)) nang xa hoi. dieu khien cac ((co va) OR (do va)) thanh vai cua te*.