Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
nang dai » nang dau, nang tai, lang dai
va thanh » gia thanh, ban thanh, va tinh
cau tren » cu tren, dau tren, ca tren
dua tren » dung tren
dai hoi » dai hoc, dai hai, dai moi
loc va » hoc va, luc va
va cao » va cac, va dao, va bao
va co » vo co

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac ky nang dai hoi. hieu ((va cao) OR (va co)) loc va thanh vai ((cau tren) or (dua tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky nang dai hoi. hieu ((va cao) OR (va co)) loc va thanh vai ((cau tren) OR (dua tren))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky nang dai hoi. hieu ((va cao) OR (va co)) loc va thanh vai ((cau tren) or (dua tren))*".