Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong hoa do snippets" » "cong hoa code snippets", "dong hoa do snippets", "dong hoc do snippets", "hang hoa do snippets", "cong hoa doi snippets", "cong hoa doc snippets", "cong hoa don 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: (((("cong hoa do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong hoa do snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong hoa do snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong hoa do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.