Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"co cham cho snippets" » "co chat cho snippets", "co chan cho snippets", "co chim choc snippets", "ca cham cho snippets", "co champa cho snippets", "cao chat cho 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: (((("co cham 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: (((("co cham cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( co cham cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("co cham cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.