Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc ki so snippets" » "hoc ky so snippets", "hoc kinh so snippets", "hoc khoi so snippets", "hoc khi so snippets", "hoc ka so snippets", "hoc ki su 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 ki so 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 ki so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc ki so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc ki so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.