Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nen tang ca snippets" » "le tang ca snippets", "nen mong ca snippets", "nen van ca snippets", "nen tang cua snippets", "nen hang ca snippets", "nen tang ma 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: (((("python using java snippets") or ("nen tang ca snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("nen tang ca snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( nen tang ca snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("nen tang ca snippets"))) or ("locating bug code snippets"))*.