Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"coc da nghe snippets" » "coc day nghe snippets", "coc va nghe snippets", "coc dang nghe snippets", "coc dat nghe snippets", "co da nghe snippets", "coc ha nghe snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("coc da nghe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("coc da nghe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( coc da nghe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("coc da nghe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.