Perhaps you should try some spelling variations:
thieu xanh » hieu manh, thien anh, thien danh
chieu xanh » chieu sach, chieu sang, chieu tinh
tran hoang » quan hoang, tran quang, tranh hang
hoang van » hang va
lang cong » dang cong, hang cong, bang cong
van lang » van nang, va lang, van hang
than cau » toan cau, phan cau, than cap
ty than » ty thanh, te than, tu than

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 xanh) OR (chieu xanh)) - tran hoang van lang cong ty than cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) OR (chieu xanh)) - tran hoang van lang cong ty than cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) OR (chieu xanh)) - tran hoang van lang cong ty than cau*.