Perhaps you should try some spelling variations:
hanh tri » thanh tri, hanh tai, hanh trinh
van hanh » van thanh, ban hanh, van anh
thi van » thi lan, thi hanh, thi nang
xuc van » duc van, luc van, vuc van
nang xa » lang xa, nang ma, mang xa
hac xuc » chat xuc
van hac » van hoc, van ha, van hai
sach ky » sac ky, sach ty, sach kem
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: so ((sach ky) or (sach y)) ((nang xa) OR (nang x)) hoi. thi van hac xuc van hanh tri cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so ((sach ky) OR (sach y)) ((nang xa) OR (nang x)) hoi. thi van hac xuc van hanh tri cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so ((sach ky) or (sach y)) ((nang xa) OR (nang x)) hoi. thi van hac xuc van hanh tri cua te".
• Adding a wildcard symbol may retrieve word variants: so ((sach ky) or (sach y)) ((nang xa) OR (nang x)) hoi. thi van hac xuc van hanh tri cua te*.