Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"thi dan toi snippets" » "thi dan code snippets", "thi doan toi snippets", "thi lan toi snippets", "thi dai toi snippets", "thi dan toc snippets", "thi dan thi snippets", "thi van toi 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: (((("thi dan toi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi dan toi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( thi dan toi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi dan toi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.