Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tung toan co snippets" » "tung toan code snippets", "dung toan co snippets", "truong toan co snippets", "trong toan co snippets", "tung toan cao snippets", "tung toan ho snippets", "tung toan hoc 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: (((("tung toan co snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tung toan co snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( tung toan co snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tung toan co snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.