Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dinh van ton snippets" » "trinh van ton snippets", "sinh vat ton snippets", "dinh van toan snippets", "dinh van tan snippets", "dinh van toi 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: (((("dinh van ton snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dinh van ton snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dinh van ton snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dinh van ton snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.