Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
sang mai » sang ma, sang tai, lang mai
hanh vai » hanh vi, hanh va, hanh tai
vai cau » va cau, van cau, vai cac
tuc van » thuc van, truc van, tuc va
thu sai » thu hai, thu tai, thu san
mai hoi » mai khoi, dai hoi, lai hoi
ky sang » ky nang, ky dang, ky tang
sai ky » sac ky
ve cac » va cac, vien cac
ve cam » ve cham, va cam, ve cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sai ky sang mai hoi. hieu ((ve cam) or (ve cac)) ((tuc van) or (thuc vat)) hanh vai cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sai ky sang mai hoi. hieu ((ve cam) OR (ve cac)) ((tuc van) OR (thuc vat)) hanh vai cau tren.
• Adding a wildcard symbol may retrieve word variants: thu sai ky sang mai hoi. hieu ((ve cam) or (ve cac)) ((tuc van) or (thuc vat)) hanh vai cau tren*.