Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoai bac can snippets" » "hoi bac can snippets", "hoai bao can snippets", "thoai cac can snippets", "hoai ban can snippets", "hoai bat can snippets", "hoai tac can 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: (((("hoai bac can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoai bac can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoai bac can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoai bac can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.