Perhaps you should try some spelling variations:
luan nhung » luan chung, luan hung, quan nhung
nhung cong » dung cong, thong cong, hang cong
tinh bang » tinh sang, tinh lang, tinh quang
anh quang » anh xquang, anh quan, nhanh quang
cong tac » cong ty
tac than » tac thanh, tam than, tac nhan
than cau » toan cau, phan cau, than cap
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc hien) or (doi chi)) xanh - ((tinh bang) or (anh quang)) luan nhung cong tac than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hien) OR (doi chi)) xanh - ((tinh bang) OR (anh quang)) luan nhung cong tac than cau.
• Adding a wildcard symbol may retrieve word variants: ((hoc hien) or (doi chi)) xanh - ((tinh bang) or (anh quang)) luan nhung cong tac than cau*.