Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"missing data java snippets" » "using data java snippets", "missing java java snippets"
"van duong va snippets" » "van dong va snippets", "van dung va snippets", "van phong va snippets", "van duong van snippets", "van luong 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 data java snippets") or ("van duong va snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("missing data java snippets") OR ("van duong va snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( missing data java snippets ) or ( van duong va snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("missing data java snippets") or ("van duong va snippets"))) or ("locating bug core snippets"))*.