Perhaps you should try some spelling variations:
truong cua » truong ca, truong quan, truong cao
nhung cong » dung cong, thong cong, hang cong
hieu lang » chieu sang, hieu quang, nhieu tang
trung cua » trung tuan, trung cap, dung cua
doc hieu » toc thieu, hoc thieu, hoc hien
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: doc hieu lang - hanh ((trung cua) OR (truong cua)) nhung cong tan toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu lang - hanh ((trung cua) OR (truong cua)) nhung cong tan toan cao".
• Adding a wildcard symbol may retrieve word variants: doc hieu lang - hanh ((trung cua) OR (truong cua)) nhung cong tan toan cao*.