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