Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong xa doi snippets" » "dong xa code snippets", "dong xay doi snippets", "duong xa doi snippets", "dong ha doi snippets", "dong xoa doi snippets", "dong xa hoi snippets", "dong xa dai 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: (((("dong xa 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: (((("dong xa doi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dong xa doi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong xa doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.