Perhaps you should try some spelling variations:
hoc nganh » hoc nhanh
cau tren » cu tren, dau tren, ca tren
nang mai » nang ma, nang tai, lang mai
hieu van » hieu va, thien van, lieu va
mai hoi » mai khoi, dai hoi, lai hoi
van cau » van dau, van hau, van chat
danh vi » hanh vi, dinh vi, danh di
hoc anh » hoc nhanh, ngoc anh, hoc sinh
luc va » tuc va, loc va
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: ((hoc anh) or (hoc nganh)) ky nang mai hoi. hieu van cau ((luc va) or (duc va)) danh vi cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc anh) OR (hoc nganh)) ky nang mai hoi. hieu van cau ((luc va) OR (duc va)) danh vi cau tren.
• Adding a wildcard symbol may retrieve word variants: ((hoc anh) or (hoc nganh)) ky nang mai hoi. hieu van cau ((luc va) or (duc va)) danh vi cau tren*.