Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong vat son snippets" » "dong vat code snippets", "dong va son snippets", "dong von son snippets", "dong ha son snippets", "dong van son snippets", "dong vat con snippets", "dong vat sinh 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: (((("python using java snippets") or ("dong vat son snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("dong vat son snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( dong vat son snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("dong vat son snippets"))) or ("locating bug core snippets"))*.