Perhaps you should try some spelling variations:
hanh tri » thanh tri, hanh tai, hanh trinh
te sach » toc sach
sach tu » sach thu, cach tu, sach ty
mang xa » lang xa, mang may, dang xay
hieu ve » hieu va, hieu van
xuc van » luc van, vuc van, xuc ban
duc van » duc va, duc tan, duc manh
ang xa » lang xa, dang xay, hoang xa
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach tu ((ang xa) OR (mang xa)) hoi. hieu ve cam ((xuc van) or (duc van)) hanh tri cua nguoi~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tu ((ang xa) OR (mang xa)) hoi. hieu ve cam ((xuc van) OR (duc van)) hanh tri cua nguoi.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach tu ((ang xa) OR (mang xa)) hoi. hieu ve cam ((xuc van) or (duc van)) hanh tri cua nguoi".
• Adding a wildcard symbol may retrieve word variants: te sach tu ((ang xa) OR (mang xa)) hoi. hieu ve cam ((xuc van) or (duc van)) hanh tri cua nguoi*.