Perhaps you should try some spelling variations:
chat trung » chat trong, ha trung, cua trung
thu sach » tu sach, thuat sach, thuoc sach
hieu cac » hieu luc, hieu va, hieu van
danh dai » danh dau, danh di, danh sai
trung va » truong va, trang va, trung ha
hieu cao » chieu cao, hieu ca, kieu cao
nang xa » nang x, lang xa, mang xa
va danh » va dinh, va dan, va hanh
nang ma » tang ma, sang ma, nang cao
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach y ((nang xa) OR (nang ma)) hoi. ((hieu cao) or (hieu cac)) chat trung va danh dai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y ((nang xa) OR (nang ma)) hoi. ((hieu cao) OR (hieu cac)) chat trung va danh dai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y ((nang xa) OR (nang ma)) hoi. ((hieu cao) or (hieu cac)) chat trung va danh dai cua te".
• Adding a wildcard symbol may retrieve word variants: thu sach y ((nang xa) OR (nang ma)) hoi. ((hieu cao) or (hieu cac)) chat trung va danh dai cua te*.