Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong ma mo snippets" » "dong ma code snippets", "duong ma mo snippets", "dong mua mo snippets", "dong ha mo snippets", "dong ma moi snippets", "dong ma so snippets", "dong va mo 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 ma mo 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 ma mo snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dong ma mo snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong ma mo snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.