Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tac dang do snippets" » "tac dung do snippets", "cac dang do snippets", "tac dong do snippets", "tac nang doc snippets", "tac dung doi snippets", "tac 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: (((("tac 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: (((("tac dang do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tac dang do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tac dang do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.