Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luat moi can snippets" » "luat hoi can snippets", "luat so can snippets", "luat dai can snippets", "luat voi can snippets", "luat loi can snippets", "luat moi ban 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: (((("luat moi can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luat moi can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luat moi can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luat moi can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.