Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"nao hoi doai snippets" » "nao hoi code snippets", "nao hoi doi snippets", "nao hoi thoai snippets", "nao hoi dap snippets", "nam hoi doai snippets", "tao hoi doai snippets", "nao noi doai 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: (((("nao hoi doai snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nao hoi doai snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( nao hoi doai snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nao hoi doai snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.