Perhaps you should try some spelling variations:
vanh tai » van tai, hanh tai, vanh dai
tu sach » thu sach, su sach, te sach
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
anh tai » hanh tai, anh thai, xanh tai
cuu tre » cua tre, cau tren, cau treo
sach o » sach lo, sac o, sach y
o lang » hoa lang, hoi lang

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