Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc chinh do snippets" » "hoan chinh do snippets", "hoc sinh do snippets", "hoc kinh do snippets", "hoc chinh so snippets", "hoc chinh du snippets", "hoc chinh cho 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: (((("hoc chinh do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc chinh do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc chinh do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc chinh do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.