Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bang hoc chu snippets" » "nang hoc chu snippets", "mang hoc chu snippets", "quang hoc chu snippets", "bang hoc cau snippets", "bang hoc cho snippets", "bang hoc thuc 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: (((("bang hoc chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bang hoc chu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bang hoc chu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bang hoc chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.