Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
hanh tri » thanh tri, hanh tai, hanh trinh
sach ky » sac ky, sach ty, sach kem
nang xa » nang x, lang xa, nang ma
van bac » van bao, van hac, dan bac
xuc van » duc van, luc van, vuc van
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: co ((sach ky) OR (sach y)) nang xa hoi. thi ((van bac) or (van ban)) xuc van hanh tri cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: co ((sach ky) OR (sach y)) nang xa hoi. thi ((van bac) OR (van ban)) xuc van hanh tri cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "co ((sach ky) OR (sach y)) nang xa hoi. thi ((van bac) or (van ban)) xuc van hanh tri cua te".
• Adding a wildcard symbol may retrieve word variants: co ((sach ky) OR (sach y)) nang xa hoi. thi ((van bac) or (van ban)) xuc van hanh tri cua te*.