Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, hieu ve
cham cuu » cap cuu, chat cua
ban hanh » ban hang
te sach » toc sach
cuu ban » cuu van, cua ban, cuu san
cua tre » cua te, cuu tre, cua triet
y lang » _ lang, tay lang, yen lang
o lang » hoa lang, hoi lang
vi cua » vai cua, di cua

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