Perhaps you should try some spelling variations:
manh hanh » xanh hanh, danh thanh, minh thanh
te sach » toc sach
hanh va » hang va, hanh vi
cam suc » cam xuc, cao suc
sach ty » sach y, sach tu, sach thu
cua tre » cua te, cuu tre, cua triet
nang xa » lang xa, nang ma, mang xa
hieu ve » hieu va, hieu van
va cua » va chua, via cua, ca cua

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty ((nang xa) OR (nang x)) hoi. hieu ve ((cam suc) OR (cham soc)) manh hanh va cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty ((nang xa) OR (nang x)) hoi. hieu ve ((cam suc) or (cham soc)) manh hanh va cua tre~".
• Adding a wildcard symbol may retrieve word variants: te sach ty ((nang xa) OR (nang x)) hoi. hieu ve ((cam suc) or (cham soc)) manh hanh va cua tre*.