Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
va chat » van chat, va phat, cao chat
danh de » hanh de, dan de, dang de
y nang » ky nang, ly nang, v nang
luc va » duc va, tuc va
de cua » le cua, te cua, dieu cua
cua te » cua tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang xa hoi. lieu va chat ((luc va) OR (((loc va) OR (hoc va)))) danh de cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang xa hoi. lieu va chat ((luc va) or (((loc va) OR (hoc va)))) danh de cua te~".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. lieu va chat ((luc va) or (((loc va) OR (hoc va)))) danh de cua te*.