Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thanh kem » hanh kem, thanh ke, thanh ket
dua tren » dung tren
cau treo » cau theo, cau tren, cau triet
te sach » toc sach
sach ky » sac ky, sach y, sach ty
luc van » luoc van, luu van, duc van
ve cam » ve cham, ve cac, ve cai
va cam » va cham, va cac, va cao

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 ky nang x ho. hieu ((ve cam) OR (va cam)) luc van thanh kem ((dua tren) or (cau treo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang x ho. hieu ((ve cam) OR (va cam)) luc van thanh kem ((dua tren) OR (cau treo)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang x ho. hieu ((ve cam) OR (va cam)) luc van thanh kem ((dua tren) or (cau treo))".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang x ho. hieu ((ve cam) OR (va cam)) luc van thanh kem ((dua tren) or (cau treo))*.