Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, cau treo
van cham » van chat, van tham, va cham
thanh vi » thanh va, thanh ve, nhanh vi
cham duc » pham duc, cham soc, pham duy
hieu van » hieu va, thien van, lieu va
lang xa » lang ha, dang xay, lang van
sach ky » sac ky, sach y, sach ty
ky lang » ky nang, ky dang, ky tang
ca tren » cu tren, la tren, co tren
te sach » toc sach

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 lang xa hoi. hieu van cham duc va ((thanh vi) OR (hanh vi)) ((ca tren) or (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky lang xa hoi. hieu van cham duc va ((thanh vi) OR (hanh vi)) ((ca tren) OR (cau tren))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky lang xa hoi. hieu van cham duc va ((thanh vi) OR (hanh vi)) ((ca tren) or (cau tren))*".