Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
hanh vai » hanh vi, hanh va, hanh tai
sach ty » sach y, sach tu, sach thu
vai cau » va cau, van cau, vai cac
xa hanh » xa thanh, xa khanh, va hanh
va cham » va chat, va tham
tu sach » thu sach, su sach, te sach
ty nang » ky nang, ty xang, ty hang
ve cam » ve cham, va cam, ve cai
ve cac » va cac, vien cac
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ty nang x hoi. hieu ((((ve cam) OR (ve cac))) or (va cham)) tuc xa hanh vai cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang x hoi. hieu ((((ve cam) OR (ve cac))) OR (va cham)) tuc xa hanh vai cau tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty nang x hoi. hieu ((((ve cam) OR (ve cac))) or (va cham)) tuc xa hanh vai cau tren".
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang x hoi. hieu ((((ve cam) OR (ve cac))) or (va cham)) tuc xa hanh vai cau tren*.