Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san, tinh toan
thanh tai » thanh hai, doanh tai, thanh san
cham suc » cham soc, cham cuu, cao suc
suc minh » suc manh, duc minh, vu minh
tu sach » thu sach, su sach, te sach
hieu va » lieu va, hieu qua
hieu ve » hieu van
nang xa » nang x, lang xa, nang ma
cuu tre » cua tre, cau tren, cau treo
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 va)) cham suc minh ((thanh tai) or (thanh toan)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang xa hoi. ((hieu ve) OR (hieu va)) cham suc minh ((thanh tai) OR (thanh toan)) cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang xa hoi. ((hieu ve) OR (hieu va)) cham suc minh ((thanh tai) or (thanh toan)) cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. ((hieu ve) OR (hieu va)) cham suc minh ((thanh tai) or (thanh toan)) cuu tre*.