Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu benh tre snippets" » "tru benh tre snippets", "thu binh tre snippets", "chua benh tre snippets", "thu ben tre snippets", "thu benh theo snippets", "thu benh tai 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: (((("thu benh tre snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thu benh tre snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu benh tre snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu benh tre snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.