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