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 dung dat snippets" » "van dong dat snippets", "xay dung dat snippets", "tin dung dat snippets", "van dung va snippets", "van dung tai 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 dung dat snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"missing data java snippets\") OR (\"van dung dat snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( missing data java snippets ) OR ( van dung dat snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("missing data java snippets") OR ("van dung dat snippets"))) OR ("locating bug core snippets"))*.