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"
"van cong ma snippets" » "van dong ma snippets", "van phong ma snippets", "phan cong ma snippets", "van cuong ma snippets", "van cong ha snippets", "van cong va snippets"

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

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