Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"moi gioi can snippets" » "loi gioi can snippets", "noi gioi can snippets", "moi nguoi can snippets", "moi gioi van snippets", "moi gioi cam snippets", "moi gioi cau 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: (((("moi gioi 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: (((("moi gioi can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( moi gioi can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("moi gioi can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.