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