Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toc nam cham snippets" » "toc nang cham snippets", "toc nam chi snippets", "toc nam cao snippets", "hoc nam cham snippets", "oc nam cham snippets", "goc nam cham 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: (((("toc nam cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toc nam cham snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toc nam cham snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toc nam cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.