Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tuc danh chi snippets" » "tuc dan chi snippets", "tac danh chi snippets", "tuc hanh chi snippets", "tuc danh cho snippets", "tuc dinh chi snippets", "tuc banh chi 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: (((("tuc danh chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tuc danh chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tuc danh chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tuc danh chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.