Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu sang » chieu sang, thieu khang, thieu quang
trung quan » truong quan, trong quan, trung tuan
quan thong » quang thong, quan trong, xuan thong
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
gian phu » san phu, van phu, bien phu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu sang - thanh trung quan thong cong ((gian phu) or (gian xu)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - thanh trung quan thong cong ((gian phu) OR (gian xu)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - thanh trung quan thong cong ((gian phu) or (gian xu)) cau*.