Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using data java snippets" » "using java java snippets", "using sat java snippets", "missing data java snippets"
"van khang cu snippets" » "van khanh cu snippets", "van thanh cu snippets", "van quang cu snippets", "van khung cua snippets", "van thang cua snippets", "van chung cu snippets"

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

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