Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong vat du snippets" » "dong vat code snippets", "dong va du snippets", "dong von du snippets", "dong ha du snippets", "dong vat tu snippets", "dong vat da snippets", "dong vat de 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 vat du 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 vat du snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dong vat du snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong vat du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.