Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"moi tim cach snippets" » "moi tim mach snippets", "moi tinh cach snippets", "moi tu cach snippets", "hoi tim cach snippets", "noi tim cach 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: (((("moi tim cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("moi tim cach snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( moi tim cach snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("moi tim cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.