Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
cham tuc » nham thuc, pham thuc, tham thuc
dua tren » dung tren
va thanh » gia thanh, ban thanh, va tinh
tu sach » thu sach, su sach, te sach
va cham » va chat, va tham
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
tao hoi » tao khoi, tay hoi, thao hoc
tuc va » thuc va, truc va, tuc xa
cua te » cua tu

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 nang ((tao hoi) OR (tao boi)). hieu va cham tuc va thanh lap ((dua tren) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang ((tao hoi) OR (tao boi)). hieu va cham tuc va thanh lap ((dua tren) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang ((tao hoi) OR (tao boi)). hieu va cham tuc va thanh lap ((dua tren) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang ((tao hoi) OR (tao boi)). hieu va cham tuc va thanh lap ((dua tren) or (cua te))*.