Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
van thanh » ban thanh, van tuan
thanh di » thanh doi, thanh de, thanh do
nang xa » nang x, lang xa, nang ma
va cham » va chat, va tham
duc van » duc va, duc tan, duc manh
y nang » ky nang, ly nang, v nang
va dai » va dao, vi dai, va dau
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: thuat sach y nang xa hoi. lieu ((va dai) or (va cham)) duc van thanh di ((cua te) OR (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach y nang xa hoi. lieu ((va dai) OR (va cham)) duc van thanh di ((cua te) OR (cua tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach y nang xa hoi. lieu ((va dai) or (va cham)) duc van thanh di ((cua te) OR (cua tu))".
• Adding a wildcard symbol may retrieve word variants: thuat sach y nang xa hoi. lieu ((va dai) or (va cham)) duc van thanh di ((cua te) OR (cua tu))*.