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