Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cach cong de snippets" » "cac cong de snippets", "cach con de snippets", "khach cong de snippets", "cach cong da snippets", "cach cong ve snippets", "cach cong dieu 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: (((("cach cong de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cach cong de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cach cong de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cach cong de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.