Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van khang cac snippets" » "van khang code snippets", "van khanh cac snippets", "van thanh cac snippets", "van quang cac snippets", "van hang cac snippets", "van khoang cach snippets", "van khang chan snippets"
"using java java snippets" » "using data 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 java java snippets") or ("van khang cac snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java java snippets") OR ("van khang cac snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( using java java snippets ) or ( van khang cac snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java java snippets") or ("van khang cac snippets"))) or ("locating bug core snippets"))*.