Perhaps you should try some spelling variations:
hieu cao » chieu cao, hieu ca, kieu cao
hieu cac » hieu luc, hieu va, hieu van
hanh di » hanh vi, hanh de, hang di
va hanh » van hanh, va thanh, va danh
sach ly » sach y, sach lo, sach ty
vu sach » vu bach, su sach, vu khach
sang ma » tang ma, nang ma, sang tao
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet
di cua » dai cua, doi cua, de cua
xu va » xu van, tu va, su va

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

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