Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tung dang do snippets" » "tung dan do snippets", "dung dang do snippets", "truong dang do snippets", "tung nang doc snippets", "tung dung doi snippets", "tung dang duc 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: (((("tung dang do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tung dang do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tung dang do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tung dang do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.