Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"missing java java snippets" » "missing data java snippets", "using java java snippets"
"viet hung co snippets" » "viet hung code snippets", "viet huong co snippets", "viet trung co snippets", "viet chung co snippets", "viet khung co snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("viet hung co snippets") or ("missing java java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("viet hung co snippets") OR ("missing java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( viet hung co snippets ) or ( missing java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("viet hung co snippets") or ("missing java java snippets"))) or ("locating bug core snippets"))*.