Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
sang tao » hang tai
dua tren » dung tren
tu sach » thu sach, su sach, te sach
ky sang » ky nang, ky dang, ky tang
tao hoi » tao khoi, tao boi, tay hoi
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
sach ky » sac ky, sach y, sach ty
cua te » cua tu
loc va » hoc va, luc va
soc va » hoc va, doc va, goc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky sang tao hoi. hieu ve cham ((soc va) OR (loc va)) thanh lap ((dua tren) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky sang tao hoi. hieu ve cham ((soc va) OR (loc va)) thanh lap ((dua tren) OR (cua te))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky sang tao hoi. hieu ve cham ((soc va) OR (loc va)) thanh lap ((dua tren) or (cua te))*".