Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
hoc thieu » toc thieu, hoc hien
bang cong » dang cong, bang song, hang cong
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
trang va » tran van
toan cao » toan ban, toan tap

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 tinh - hanh ((trang va) or (hang va)) bang cong manh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - hanh ((trang va) OR (hang va)) bang cong manh toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - hanh ((trang va) or (hang va)) bang cong manh toan cao*.