Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duoc huu du snippets" » "duoc luu du snippets", "nuoc huu du snippets", "duong huu du snippets", "duoc huu duc snippets", "duoc hut du snippets", "duoc 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: (((("duoc 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: (((("duoc huu du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duoc huu du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duoc huu du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.