Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"ban dan chap snippets" » "ban dan code snippets", "ban dan chan snippets", "ban dan thap snippets", "ban danh phap snippets", "ban hang chap snippets", "ban hanh chap snippets", "ban quan chap snippets"
"python using java snippets" » "python using data 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: (((("ban dan chap snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ban dan chap snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( ban dan chap snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban dan chap snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.