Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"chu viet can snippets" » "chu viet code snippets", "che viet can snippets", "khau viet can snippets", "su viet can snippets", "chu viet van snippets", "chu viet ca snippets", "chu vien can 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 ("chu viet can snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("chu viet can snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( chu viet can snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("chu viet can snippets"))) or ("locating bug core snippets"))*.