Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cuong ve khe snippets" » "cuong vo khe snippets", "duong ve khe snippets", "luong va khe snippets", "cuong ve che snippets", "cuong ve ke snippets", "cuong ve khieu 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: (((("cuong ve khe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cuong ve khe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuong ve khe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuong ve khe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.