Perhaps you should try some spelling variations:
"tranh hoang tu snippets" » "tran hoang tu snippets", "tranh hang tu snippets", "thanh hoang tu snippets", "tranh hoang thu snippets", "tranh hoang vu snippets", "tranh hoang tuan snippets", "tranh hoang tu slippers"
"using java code snippets" » "using data code snippets", "using java core snippets", "using java code slippers"
"locating bug code snippets" » "locating bug core snippets", "locating bug code slippers", "locating bung code snippets", "locating bugs code 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 code snippets") or ("tranh hoang tu snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("tranh hoang tu snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( tranh hoang tu snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("tranh hoang tu snippets"))) or ("locating bug code snippets"))*.