Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"goc qua doi snippets" » "goc cua doi snippets", "toc qua doi snippets", "ngoc quan doi snippets", "goc quan doi snippets", "goc qua loi snippets", "goc sua doi 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: (((("goc qua doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("goc qua doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( goc qua doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("goc qua doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.