Perhaps you should try some spelling variations:
hoc anh » hoc nganh, hoc nhanh, ngoc anh
kv nang » ky nang, ki nang, ke nang
hieu va » lieu va, hieu qua
cam loc » cam lo
va danh » va dinh, va dan, va hanh
danh du » danh dau, danh tu, dinh du
cuu tre » cua tre, cau tren, cau treo
v nang » va nang, vu nang, van nang
va cam » va cham, va cac, va cao
loc va » hoc va, luc va
du cuu » tu cuu

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 ((v nang) or (kv nang)) xa hoi. hieu va cam loc va danh du cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc anh ((v nang) OR (kv nang)) xa hoi. hieu va cam loc va danh du cuu tre.
• Adding a wildcard symbol may retrieve word variants: hoc anh ((v nang) or (kv nang)) xa hoi. hieu va cam loc va danh du cuu tre*.