Perhaps you should try some spelling variations:
cham luc » cham soc, nhan luc, cham cuu
te sach » toc sach
hanh va » hang va
luc gia » luoc gia, duc gia, quoc gia
va cham » va chat, va tham
hieu va » lieu va, hieu qua
van hoc » van hoa
cuu tre » cua tre, cau tren, cau treo
y lang » _ lang, tay lang, yen lang
o lang » hoa lang, hoi 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) or (o lang)) van hoc. hieu va cham luc gia ((hanh vi) or (hanh va)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((y lang) OR (o lang)) van hoc. hieu va cham luc gia ((hanh vi) OR (hanh va)) cuu tre.
• Adding a wildcard symbol may retrieve word variants: te sach ((y lang) or (o lang)) van hoc. hieu va cham luc gia ((hanh vi) or (hanh va)) cuu tre*.