Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thuat dam da snippets" » "thuat cam da snippets", "thuat do da snippets", "thuat xay da snippets", "thuat dam dac snippets", "thuat dam dam snippets", "thuat nam da 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: (((("thuat dam da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thuat dam da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thuat dam da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuat dam da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.