Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
doc sach » hoc sach, toc sach, nuoc sach
phan duc » pham duc, phan tu, phan dau
va thanh » gia thanh, ban thanh, va tinh
tao khoi » tao hoi, thao khoa, lao khoa
hieu vi » hieu voi, hieu va, hieu ve
vi phan » va phan, vi pham, ve phan
ky danh » ky anh, ky dang
ky sang » ky nang, ky dang, ky tang
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc sach ((ky sang) or (ky danh)) tao khoi. hieu vi phan duc va thanh lap ((cua te) OR (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc sach ((ky sang) OR (ky danh)) tao khoi. hieu vi phan duc va thanh lap ((cua te) OR (cua tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc sach ((ky sang) or (ky danh)) tao khoi. hieu vi phan duc va thanh lap ((cua te) OR (cua tu))".
• Adding a wildcard symbol may retrieve word variants: doc sach ((ky sang) or (ky danh)) tao khoi. hieu vi phan duc va thanh lap ((cua te) OR (cua tu))*.