Perhaps you should try some spelling variations:
hoc thieu » hoc hien
canh hanh » xanh hanh, canh tranh, danh thanh
lang cong » dang cong, bang cong, hang cong
cong phan » cong nhan, cong khan, chong phap
phan dang » phan dau, phan cong, nhan dan
dang cham » nang cham, trang cham, duong cham
hanh va » hang va, hanh vi
va lang » va nang, hoa lang

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)) manh - canh hanh va lang cong phan dang cham~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) manh - canh hanh va lang cong phan dang cham.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (toc thieu)) manh - canh hanh va lang cong phan dang cham*.