Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tam anh co snippets" » "tuan anh co snippets", "pham anh co snippets", "tam linh co snippets", "tam anh so snippets", "tam danh cho snippets", "tam nganh co 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: (((("tam anh co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tam anh co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tam anh co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tam anh co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.