Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong de cua snippets" » "dong de code snippets", "dung de cua snippets", "dong da cua snippets", "dong do cua snippets", "dong le cua snippets", "dong te cua snippets", "dong dieu cua 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 de cua 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 de cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dong de cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong de cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.