Perhaps you should try some spelling variations:
hoc thieu » hoc hien
tinh nang » trinh nang, tin nang, tich nang
nang phat » nang suat, van phat
phat hang » pham hang, phat hanh, phat thanh
hang cong » dang cong, hang nong, bang cong
cong thai » cong hai, hong thai, cong thanh
thai dan » thai doan, thai danh, thoai dan

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)) sang - tinh nang phat hang cong thai dan ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) sang - tinh nang phat hang cong thai dan ca*.