Perhaps you should try some spelling variations:
hieu cao » chieu cao, hieu cac, hieu ca
chat soc » cham soc, chat hoc, chat doc
danh bai » anh bai, danh bat, dang bai
tu sach » thu sach, su sach, te sach
nang xa » lang xa, nang ma, mang xa
va danh » va dinh, va dan, va hanh
ca viet » va viet, co viet, san viet
soc va » hoc va, loc va, doc va

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 (nang x)) hoi. hieu cao chat soc va danh bai ((ca viet) OR (hoa viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y ((nang xa) OR (nang x)) hoi. hieu cao chat soc va danh bai ((ca viet) OR (hoa viet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y ((nang xa) or (nang x)) hoi. hieu cao chat soc va danh bai ((ca viet) OR (hoa viet))*".