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