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