Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong long ve snippets" » "cong luong ve snippets", "cong dong ve snippets", "cong cong ve snippets", "cong luong va snippets", "cong duong ve 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: (((("cong long 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: (((("cong long ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong long ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong long ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.