Perhaps you should try some spelling variations:
truong trong » truong trung, thuong trong, trung trong
thieu manh » hieu manh, tien manh, trieu minh
cua truong » cua trung, xuan truong, cac truong
trong sinh » trong kinh, trong san
thanh van » thanh san, thanh toan, thanh phan
hanh ban » thanh ban, hang ban, hanh san
sinh van » sinh vat, dinh van, sinh va

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu manh - ((hanh ban) or (thanh van)) cua truong trong sinh van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu manh - ((hanh ban) OR (thanh van)) cua truong trong sinh van ban*.