Perhaps you should try some spelling variations:
nham nang » phap nang, kha nang, nhan dang
cau tren » cu tren, dau tren, ca tren
thanh vi » hanh vi, thanh va, thanh ve
va thanh » gia thanh, ban thanh, va tinh
cam duc » cam xuc, cao duc, nam duoc
vu sach » vu bach, su sach, vu khach
hieu ve » hieu va, hieu van
ma hoi » mai hoi, xa hoi, ma hoa
vi cau » va cau, ve cau, di cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ((nham nang) or (cam nang)) ma hoi. hieu ve ((cam duc) or (pham duc)) va thanh vi cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ((nham nang) OR (cam nang)) ma hoi. hieu ve ((cam duc) OR (pham duc)) va thanh vi cau tren.
• Adding a wildcard symbol may retrieve word variants: vu sach ((nham nang) or (cam nang)) ma hoi. hieu ve ((cam duc) or (pham duc)) va thanh vi cau tren*.