Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"so vien he snippets" » "so viet he snippets", "so bien he snippets", "so lien he snippets", "so dien he snippets", "so trien he snippets", "so thien he 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: (((("so vien he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("so vien he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( so vien he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("so vien he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.