Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
te sach » toc sach
danh tu » anh tu, doanh thu
hanh ve » hanh vi, hanh va, hanh kem
hanh te » hanh tu, hanh de, hanh he
luc van » luoc van, luu van, duc van
hau luc » hau loc, cau luc, nhan luc
van hau » van ha, van hai, van dau
lang xa » lang ha, dang xay, lang van
cua tre » cua te, cuu tre, cua triet
y lang » o lang, _ lang, tay lang

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 hoi. hieu van hau luc van ((((hanh te) OR (hanh ve))) or (danh tu)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y lang xa hoi. hieu van hau luc van ((((hanh te) OR (hanh ve))) OR (danh tu)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y lang xa hoi. hieu van hau luc van ((((hanh te) OR (hanh ve))) or (danh tu)) cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach y lang xa hoi. hieu van hau luc van ((((hanh te) OR (hanh ve))) or (danh tu)) cua tre*.