Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phieu lo xe snippets" » "phieu o xe snippets", "phieu luu xe snippets", "thieu so xe snippets", "phieu so xe snippets", "phieu lo de 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: (((("phieu lo xe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phieu lo xe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phieu lo xe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phieu lo xe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.