Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tac kiem ted snippets" » "tac ke ted snippets", "thi kiem ted snippets", "va kiem ted snippets", "tac kieu ted snippets", "tac kiem tien snippets", "tac kieu ted1 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 kiem ted 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 kiem ted snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tac kiem ted snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tac kiem ted snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.