Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thau xay che snippets" » "thuat xay che snippets", "tu xay che snippets", "phan xay che snippets", "thau xay chen snippets", "thau may che 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: (((("thau xay che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thau xay che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thau xay che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thau xay che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.