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