Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
thai van » thi van, thanh van, thai vung
van cham » van chat, van tham, va cham
thu sach » tu sach, thuat sach, thuoc sach
cham xuc » cam xuc, chat xuc, cham soc
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
xuc va » duc va, tuc va, luc va
va han » va phan, van han, va hanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach y ((nang xa) OR (lang xa)) hoi. hieu van cham xuc va han ((thai va) or (thai van)) thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y ((nang xa) OR (lang xa)) hoi. hieu van cham xuc va han ((thai va) OR (thai van)) thiet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y ((nang xa) OR (lang xa)) hoi. hieu van cham xuc va han ((thai va) or (thai van)) thiet".
• Adding a wildcard symbol may retrieve word variants: thu sach y ((nang xa) OR (lang xa)) hoi. hieu van cham xuc va han ((thai va) or (thai van)) thiet*.