Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong mon cua snippets" » "dong mon code snippets", "dong von cua snippets", "dong son cua snippets", "dong co cua snippets", "dong mong cua snippets", "dong muon cua snippets", "dong con 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 mon 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 mon cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dong mon cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong mon cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.