Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua dang hoe snippets" » "cua cong hoe snippets", "cua ban hoe snippets", "cua dang khoi snippets", "cua dang hien snippets", "cua dang hoai 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: (((("cua dang hoe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cua dang hoe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua dang hoe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua dang hoe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.