Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"don cac cach snippets" » "don cai cach snippets", "don cuoc cach snippets", "don va cach snippets", "dong cac cach snippets", "ton cac cach snippets", "do cac 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: (((("don cac 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: (((("don cac cach snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( don cac cach snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("don cac cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.