Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"lan dan he snippets" » "lan dan code snippets", "ban dan he snippets", "van dan he snippets", "lan dau he snippets", "lan dan ve snippets", "lan dan de snippets", "lan dan ke 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: (((("lan dan he snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lan dan he snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( lan dan he snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lan dan he snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.