Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cach dao cho snippets" » "sach dao cho snippets", "cach bao cho snippets", "cach nao cho snippets", "cach cao cho snippets", "cach dac cho snippets", "cach dao ho 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 dao cho 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 dao cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cach dao cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cach dao cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.