Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
tang mai » tang ma, tang tai, lang mai
hanh tai » thanh tai, hang tai, han tai
hanh vai » hanh vi, hanh va, hanh van
ky tang » ky nang, ky dang, kho tang
mai hoi » mai khoi, dai hoi, lai hoi
ve cao » va cao, ve cac, ve co
ve bao » te bao, va bao

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 tang mai hoi. hieu ((ve cao) or (ve bao)) duc va ((hanh vai) OR (hanh tai)) cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky tang mai hoi. hieu ((ve cao) OR (ve bao)) duc va ((hanh vai) OR (hanh tai)) cau tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky tang mai hoi. hieu ((ve cao) or (ve bao)) duc va ((hanh vai) OR (hanh tai)) cau tren".
• Adding a wildcard symbol may retrieve word variants: tu cac ky tang mai hoi. hieu ((ve cao) or (ve bao)) duc va ((hanh vai) OR (hanh tai)) cau tren*.