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