Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
tran tuan » tran xuan, tran quang, tran thanh
trung cap » truong cao, trung tam
dung cong » dung trong
cong tan » cong tac, cong san, cong thanh
tan gian » tran gian, dan gian, van gian
gian nan » gian dan, gian lan, gian van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu xanh) or (chieu sang)) - hanh ((tran tuan) or (trung cap)) dung cong tan gian nan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu sang)) - hanh ((tran tuan) OR (trung cap)) dung cong tan gian nan.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chieu sang)) - hanh ((tran tuan) or (trung cap)) dung cong tan gian nan*.