Perhaps you should try some spelling variations:
manh hanh » xanh hanh, danh thanh, minh thanh
hanh tai » thanh tai, hang tai, han tai
cham suc » cham soc, cham cuu, cao suc
tu sach » thu sach, su sach, te sach
hieu va » lieu va, hieu qua
tai cuu » tai cuc, tai buu, tai cua
cuu tre » cua tre, cau tren, cau treo
hieu ve » hieu van
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa

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