Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"viec voi con snippets" » "viec cuoi con snippets", "viec va con snippets", "viec so con snippets", "viec voi cong snippets", "viec voi chon snippets", "viec voi 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: (((("viec voi con 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 voi con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( viec voi con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("viec voi con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.