Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tham cap den snippets" » "than cap den snippets", "tham nhap den snippets", "tham canh den snippets", "tham cap dien snippets", "tham cau den snippets", "tham chap dien 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 cap den 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 cap den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tham cap den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tham cap den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.