Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hat lieu so snippets" » "vat lieu so snippets", "nhat bieu so snippets", "chat lien so snippets", "hat hieu so snippets", "hat thieu so snippets", "hat lieu hoc 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: (((("hat lieu 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: (((("hat lieu so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hat lieu so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hat lieu so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.