Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"toan tran du snippets" » "toan tran code snippets", "thoan tran du snippets", "tan tran du snippets", "hoan tran du snippets", "toan tran duc snippets", "toan tran duy snippets", "toan trang du snippets"
"python using java snippets" » "python using data 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: (((("toan tran du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toan tran du snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( toan tran du snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toan tran du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.