Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
phap luu » phap lua, phap luat, phap luan
cham luu » cham cuu, chat lua, cham lai
doi cua » dai cua, hoi cua
te sach » toc sach
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
y nang » ky nang, ly nang, v nang
di cua » dai cua, de cua, do cua

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 y nang xa hoi. hieu va ((cham luu) OR (phap luu)) van thanh ((di cua) or (doi cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang xa hoi. hieu va ((cham luu) OR (phap luu)) van thanh ((di cua) OR (doi cua)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang xa hoi. hieu va ((cham luu) OR (phap luu)) van thanh ((di cua) or (doi cua)) triet".
• Adding a wildcard symbol may retrieve word variants: te sach y nang xa hoi. hieu va ((cham luu) OR (phap luu)) van thanh ((di cua) or (doi cua)) triet*.