Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
hieu van » hieu va, thien van, lieu va
hanh tai » hang tai, han tai, hinh tai
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va
cam suc » cam xuc, cao suc, cham soc
buu tre » cuu tre
y nang » ky nang, ly nang, v nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y nang xa hoi. ((hieu ve) OR (hieu van)) cam suc manh ((hanh tai) or (thanh tai)) buu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang xa hoi. ((hieu ve) OR (hieu van)) cam suc manh ((hanh tai) OR (thanh tai)) buu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang xa hoi. ((hieu ve) OR (hieu van)) cam suc manh ((hanh tai) or (thanh tai)) buu tre".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. ((hieu ve) OR (hieu van)) cam suc manh ((hanh tai) or (thanh tai)) buu tre*.