Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hue voi hoc snippets" » "quen voi hoc snippets", "chua voi hoc snippets", "hieu voi hoc snippets", "hue hoi hoc snippets", "hue vi hoc snippets", "hue voi ho 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: (((("hue voi hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hue voi hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hue voi hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hue voi hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.