Perhaps you should try some spelling variations:
duc manh » suc manh, duc anh, duc minh
dua tren » dung tren
manh han » manh hai, manh hon, anh han
hieu van » hieu va, thien van, lieu va
tu sach » thu sach, su sach, tu cach
han tai » hang tai, nhan tai, van tai
van bao » van ban, van dao
bao duc » dao duc, bao luc, cao duc
nang xa » nang x, lang xa, nang ma
te sach » toc sach
y nang » ky nang, ly nang, v nang
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) OR (te sach)) y nang xa hoi. hieu van bao duc manh han tai ((dua tren) OR (cua te))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (te sach)) y nang xa hoi. hieu van bao duc manh han tai ((dua tren) or (cua te))~".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (te sach)) y nang xa hoi. hieu van bao duc manh han tai ((dua tren) or (cua te))*.