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