Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"voi dac cuoc snippets" » "voi dao cuoc snippets", "voi doc cuoc snippets", "voi cac cuoc snippets", "voi dai cuoc snippets", "voi dan cuoc snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("voi dac cuoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("voi dac cuoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( voi dac cuoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("voi dac cuoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.