Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"doc phan chi snippets" » "doc phan code snippets", "hoc phan chi snippets", "duc phan chi snippets", "doc than chi snippets", "doc phan thi snippets", "doc phan che snippets", "doc pham chi 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: (((("python using java snippets") or ("doc phan chi snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("doc phan chi snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( doc phan chi snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("doc phan chi snippets"))) or ("locating bug core snippets"))*.