Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong ngo so snippets" » "dong ngo code snippets", "dang ngoc so snippets", "dong co so snippets", "dong cho so snippets", "dong ngo sao snippets", "dong ngo sy snippets", "dong ngo vo 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 ngo so 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 ngo so snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( dong ngo so snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("dong ngo so snippets"))) or ("locating bug core snippets"))*.