Perhaps you should try some spelling variations:
"locating bug code slippers" » "locating bug code snippets", "locating bung code slippers", "locating bugs code slippers"
"using data java snippets" » "using java java snippets", "using sat java snippets", "missing data java snippets"
"vi trinh lap snippets" » "vi trinh luat snippets", "vi trinh luan snippets", "vi trinh phap snippets", "vi tinh lap snippets", "va trinh lap snippets", "viet trinh lap snippets"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"vi trinh lap snippets\") OR (\"using data java snippets\"))) OR (\"locating bug code slippers\"))~".
• Removing quotes may allow a broader search: (((( vi trinh lap snippets ) OR ( using data java snippets ))) OR ( locating bug code slippers ))~.
• Adding a wildcard symbol may retrieve word variants: (((("vi trinh lap snippets") OR ("using data java snippets"))) OR ("locating bug code slippers"))*.