Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thien van » thi van
toc sach » hoc sach, doc sach, thuoc sach
hau duc » huu duc, ha duc, phan duc
nang xa » nang x, lang xa, nang ma
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang
de cua » te cua, dieu cua
le cua » ly cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach v nang xa hoi. thien van ((hau duc) OR (pham duc)) van thanh ((de cua) or (le cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach v nang xa hoi. thien van ((hau duc) OR (pham duc)) van thanh ((de cua) OR (le cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach v nang xa hoi. thien van ((hau duc) OR (pham duc)) van thanh ((de cua) or (le cua)) tre".
• Adding a wildcard symbol may retrieve word variants: toc sach v nang xa hoi. thien van ((hau duc) OR (pham duc)) van thanh ((de cua) or (le cua)) tre*.