Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thien van » thi van
tham soc » cham soc, tham nuoc, thai son
cau tren » dau tren, ca tren, cau treo
thanh vi » hanh vi, thanh va, thanh ve
hieu van » hieu va, lieu va, hieu ve
soc ban » hoc ban, coc ban, so ban
te sach » toc sach
sach ky » sac ky, sach y, sach ty
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
cu tren » tu tren, dua tren

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) or (thien van)) tham soc ban thanh vi ((cau tren) OR (cu tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky lang xa hoi. ((hieu van) OR (thien van)) tham soc ban thanh vi ((cau tren) OR (cu tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky lang xa hoi. ((hieu van) or (thien van)) tham soc ban thanh vi ((cau tren) OR (cu tren))".
• Adding a wildcard symbol may retrieve word variants: te sach ky lang xa hoi. ((hieu van) or (thien van)) tham soc ban thanh vi ((cau tren) OR (cu tren))*.