Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tam anh che snippets" » "tuan anh che snippets", "pham anh che snippets", "tam linh che snippets", "tam hanh che snippets", "tam anh cho snippets", "tam nganh che 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 che 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 che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tam anh che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tam anh che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.