Perhaps you should try some spelling variations:
dang van » hoang van, hang va
hanh dai » hanh tai, hanh dao, vanh dai
cua tre » cua te, cuu tre, cua triet
va hanh » van hanh, va thanh, va danh
cac loc » cac lop, cac toc, cac hoc
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
sac ky » cac ky
ve cac » va cac, vien cac
loc va » hoc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sac ky) OR (sai ky)) ((nang xa) or (dang van)) hoi. hieu ve cac loc va hanh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sac ky) OR (sai ky)) ((nang xa) OR (dang van)) hoi. hieu ve cac loc va hanh dai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sac ky) OR (sai ky)) ((nang xa) or (dang van)) hoi. hieu ve cac loc va hanh dai cua tre".
• Adding a wildcard symbol may retrieve word variants: te ((sac ky) OR (sai ky)) ((nang xa) or (dang van)) hoi. hieu ve cac loc va hanh dai cua tre*.