Perhaps you should try some spelling variations:
duc phan » dung phan, duc thang, duc phung
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
lai cua » dai cua, lai chau, thai cua
hai cua » thai cua, dai cua, hoi cua
ve cam » ve cham, ve cac, va cam

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 ty nang xa hoi. hieu ve cam ((duc phan) OR (suc manh)) hanh ((lai cua) OR (hai cua)) triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty nang xa hoi. hieu ve cam ((duc phan) or (suc manh)) hanh ((lai cua) OR (hai cua)) triet~".
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang xa hoi. hieu ve cam ((duc phan) or (suc manh)) hanh ((lai cua) OR (hai cua)) triet*.