Perhaps you should try some spelling variations:
"viet trong dai snippets" » "viet trung dai snippets", "viet thong dai snippets", "viet huong dai snippets", "viet truong dai snippets", "viet trong doi snippets", "viet trong dam snippets", "viet trong dai slippers"
"using low java snippets" » "using low java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

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

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