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