Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu sang » chieu sang, thieu khang, thieu quang
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
nhan cach » phan cac
trung va » truong va, trang va, trung ha
cong dan » cong san, cong tan, huong dan
phan cau » phan dau, phan cac, phan tu

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 va nhung cong dan ((phan cau) or (nhan cach))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - thanh trung va nhung cong dan ((phan cau) OR (nhan cach)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - thanh trung va nhung cong dan ((phan cau) or (nhan cach))*.