Perhaps you should try some spelling variations:
hoc thieu » hoc hien
hanh sinh » hanh tinh, hanh dinh, hinh sinh
sinh thuc » trinh thuc, sinh hoc, sinh thai
thuc dang » thuoc dang, thuc dan, thuc dung
dang cong » dung cong
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
phan tap » phan lap, han tap, pha 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) or (toc thieu)) tinh - hanh sinh thuc dang cong dan phan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) tinh - hanh sinh thuc dang cong dan phan tap*.