Perhaps you should try some spelling variations:
lang phuong » bang phuong, lan phuong, lang phong
nhieu tang » chieu sang, nhiet nang
hieu lang » chieu sang, hieu quang, hieu van
hanh tang » hanh trang, anh tang, hanh mang
phap san » phap sang, phap han, pha san
tang va » trang va, tang van, thang va
va lang » va nang, hoa lang
san ban » sang ban, van ban, can ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoi ((hieu lang) or (nhieu tang)) - hanh tang va lang phuong phap san ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi ((hieu lang) OR (nhieu tang)) - hanh tang va lang phuong phap san ban.
• Adding a wildcard symbol may retrieve word variants: hoi ((hieu lang) or (nhieu tang)) - hanh tang va lang phuong phap san ban*.