Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van dung che snippets" » "van dung code snippets", "van dong che snippets", "xay dung che snippets", "tin dung che snippets", "van dung chet snippets", "van duong che snippets", "van dung cho snippets"
"using a java snippets" » "using _ java snippets"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("using a java snippets") OR ("van dung che snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"using a java snippets\") OR (\"van dung che snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( using a java snippets ) OR ( van dung che snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using a java snippets") OR ("van dung che snippets"))) OR ("locating bug core snippets"))*.