Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van tuc vong snippets" » "van huy vong snippets", "van duc cong snippets", "van tuc tang snippets", "van thuc vong snippets", "van tu vong snippets", "van duc vong 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 tuc vong 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 tuc vong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van tuc vong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van tuc vong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.