Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
hieu van » hieu va, thien van, lieu va
hanh hai » nhanh hai, hang hai, hanh tai
te sach » toc sach
cac xuc » cam xuc, cac nuoc, chat xuc
xuc van » duc van, luc van, vuc van
van cac » van hac, van cau, van bac
cho hoc » co hoc, khoa hoc
cua cau » cua cac, cua chu, cua cay

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 ((ty xang) or (ky nang)) cho hoc. hieu van cac xuc van ((hanh hai) OR (thanh hai)) cua cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty xang) OR (ky nang)) cho hoc. hieu van cac xuc van ((hanh hai) OR (thanh hai)) cua cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ty xang) or (ky nang)) cho hoc. hieu van cac xuc van ((hanh hai) OR (thanh hai)) cua cau*".