Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"nan dan cac snippets" » "nan dan code snippets", "nhan dan cac snippets", "nang dan cac snippets", "ban dan cac snippets", "nan dan cach snippets", "nan dang cac snippets", "nan dan ca 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 ("nan dan cac snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("nan dan cac snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( nan dan cac snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("nan dan cac snippets"))) or ("locating bug core snippets"))*.