Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc chu can snippets" » "hoc cau can snippets", "hoc cho can snippets", "hoc thuc can snippets", "hoc chu chan snippets", "hoc chuc can snippets", "hoc chu han 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: (((("hoc chu 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: (((("hoc chu can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc chu can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc chu can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.