Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lam dung che snippets" » "lam dong che snippets", "lan dung che snippets", "am dung che snippets", "lam dung chet snippets", "lam duong che snippets", "lam dung cho 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: (((("lam dung 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: (((("lam dung che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lam dung che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lam dung che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.