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