Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoi xuan du snippets" » "ho xuan du snippets", "hoi luan du snippets", "hoi xuat du snippets", "hoi xuan duc snippets", "hoi xuan huy snippets", "hoi xuan thu 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: (((("hoi xuan 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: (((("hoi xuan du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoi xuan du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoi xuan du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.