Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
thu sach » tu sach, thuat sach, thuoc sach
va tinh » may tinh
va hanh » van hanh, va thanh, va danh
tu cach » tu cac
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
vi cau » va cau, ve cau, di cau
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cach) or (thu sach)) ky nang xa hoi. hieu ve cam xuc ((va hanh) or (va tinh)) vi cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (thu sach)) ky nang xa hoi. hieu ve cam xuc ((va hanh) OR (va tinh)) vi cau tren.
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (thu sach)) ky nang xa hoi. hieu ve cam xuc ((va hanh) or (va tinh)) vi cau tren*.