Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khuat huu du snippets" » "chat huu du snippets", "khuat huu duc snippets", "khuat hut du snippets", "khuat cuu du 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: (((("khuat huu du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khuat huu du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khuat huu du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khuat huu du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.