Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tham vong ve snippets" » "pham cong ve snippets", "pham hong ve snippets", "thai cong ve snippets", "tham long ve snippets", "tham cong ve snippets", "tham dong ve 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: (((("tham vong 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: (((("tham vong ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tham vong ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tham vong ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.