Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mau khoi can snippets" » "mai khoi can snippets", "cau hoi can snippets", "dau khi can snippets", "mau khoa can snippets", "mau khoi nang snippets", "mau hoc can 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: (((("mau khoi 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: (((("mau khoi can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mau khoi can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mau khoi can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.