Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
hoc thieu » toc thieu, hoc hien
nang chua » nang cua, nang dua, nang cham
nang thuc » dang thuoc, nhanh thuc, trang thuc
dung cong » dung trong
cong vang » cong lang, cong quang, cong ngang
vang toan » van toan, dang toan, quang toan
toan ban » van ban

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 - anh ((nang chua) or (nang thuc)) dung cong vang toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - anh ((nang chua) OR (nang thuc)) dung cong vang toan ban*.