Perhaps you should try some spelling variations:
te sach » toc sach
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
anh vi » hanh vi, anh va, anh ve
vi cua » vai cua, di cua
cam o » cham o, cam lo, tam o
ca o » co o, va o

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 y ((lang xa) or (nang x)) hoi. hieu ve ((cam o) OR (ca o)) tuan anh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((lang xa) OR (nang x)) hoi. hieu ve ((cam o) OR (ca o)) tuan anh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y ((lang xa) or (nang x)) hoi. hieu ve ((cam o) OR (ca o)) tuan anh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach y ((lang xa) or (nang x)) hoi. hieu ve ((cam o) OR (ca o)) tuan anh vi cua tre*.