Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van tan ion snippets" » "van tuan ion snippets", "van ban ion snippets", "van tai ion snippets", "van tap ion snippets", "van tan son snippets", "van bang ion 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: (((("van tan ion snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van tan ion snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van tan ion snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van tan ion snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.