Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bia cong so snippets" » "gia cong so snippets", "bi cong so snippets", "giua cong so snippets", "bia cong san snippets", "bia cong hoa 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: (((("bia cong 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: (((("bia cong so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bia cong so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bia cong so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.