Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi tac cao snippets" » "thi tam cao snippets", "thi thao cao snippets", "thi tran cao snippets", "thi tao cao snippets", "thi tay cao snippets", "thi tac bao 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: (((("thi tac cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi tac cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi tac cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi tac cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.