Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"viec va mo snippets" » "vien va mo snippets", "viec cua mo snippets", "viec va mot snippets", "viec va moi snippets", "viec vi mo 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: (((("viec va mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("viec va mo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( viec va mo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("viec va mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.