Perhaps you should try some spelling variations:
thieu manh » hieu manh, tien manh, trieu minh
thanh tung » thanh cong
hoc thieu » toc thieu, hoc hien
dai tuong » dai cuong, doi tuong, dai duong
cong lang » cong vang, cong luong, cong quang
tung dai » trung dai, tuong dai, tung dan
cong van » cong vang, cong san, song van

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 manh - thanh tung dai tuong ((cong van) or (cong lang)) quang nam~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu manh - thanh tung dai tuong ((cong van) OR (cong lang)) quang nam.
• Adding a wildcard symbol may retrieve word variants: hoc thieu manh - thanh tung dai tuong ((cong van) or (cong lang)) quang nam*.