Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
thieu sang » chieu sang, thieu khang, thieu quang
trung tuan » trung thanh, trung tam, tran tuan
hoc thieu » toc thieu, hoc hien
trung cua » truong cua, trung cap, dung cua
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, toan tap

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 - hanh ((((trung cua) or (trung tuan))) or (truong dai)) phuong cong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - hanh ((((trung cua) OR (trung tuan))) OR (truong dai)) phuong cong tan toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - hanh ((((trung cua) or (trung tuan))) or (truong dai)) phuong cong tan toan cao*.