Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thuat doi ke snippets" » "thuat do ke snippets", "thuat di ke snippets", "thuat doc ke snippets", "thuat moi ke snippets", "thuat doi de 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 doi ke 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 doi ke snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thuat doi ke snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuat doi ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.