Perhaps you should try some spelling variations:
hanh tri » thanh tri, hanh tai, hanh trinh
vu cach » va cach, ve cach, vu bach
cach tu » cach thuc
lang xa » lang ha, dang xay, lang van
cam luc » cam xuc, cau luc
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
ang xa » mang xa, dang xay, hoang xa
luc va » duc va, tuc va, loc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu cach tu ((ang xa) OR (lang xa)) hoi. ((lieu va) or (hieu qua)) cam luc va hanh tri cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu cach tu ((ang xa) OR (lang xa)) hoi. ((lieu va) OR (hieu qua)) cam luc va hanh tri cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu cach tu ((ang xa) OR (lang xa)) hoi. ((lieu va) or (hieu qua)) cam luc va hanh tri cua tre".
• Adding a wildcard symbol may retrieve word variants: vu cach tu ((ang xa) OR (lang xa)) hoi. ((lieu va) or (hieu qua)) cam luc va hanh tri cua tre*.