Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bich dan so snippets" » "binh dan so snippets", "bach dan so snippets", "binh dang so snippets", "bich dan soc snippets", "bich dan su snippets", "bich dan mo 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: (((("bich dan 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: (((("bich dan so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bich dan so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bich dan so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.