Perhaps you should try some spelling variations:
khong thong » thong thong, khong trong, thong thuong
thong than » thong thanh, thong phan, thong nhan
hieu lang » chieu sang, hieu quang, nhieu tang
luong tai » dung tai, luong va
luong cho » luong cao, luong chu, luong khoa
than phan » thanh phan, toan phan, thanh pham
mot hieu » mot chieu, moi hieu, mot chien

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

• Performing a fuzzy search may retrieve terms with similar spellings: mot hieu lang - thanh ((luong tai) or (luong cho)) khong thong than phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: mot hieu lang - thanh ((luong tai) OR (luong cho)) khong thong than phan tu.
• Adding a wildcard symbol may retrieve word variants: mot hieu lang - thanh ((luong tai) or (luong cho)) khong thong than phan tu*.