Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tra dung co snippets" » "tran dung co snippets", "trai dung co snippets", "ra dung co snippets", "tra dung cho snippets", "tra dung cong snippets", "tra dung cua 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: (((("tra dung co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tra dung co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tra dung co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tra dung co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.