Perhaps you should try some spelling variations:
hoang hai » hoang thi, hoang van
hoc sach » hoc sinh, hoc cac, hoc anh
va hoang » van hoang, vao hoang, va hang
hai cua » thai cua, dai cua, hoi cua
cam duc » cam xuc, cao duc, pham duc
hieu ve » hieu va, hieu van
ki nang » ky nang
v nang » va nang, vu nang, van nang
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc sach ((v nang) or (ki nang)) xa hoi. hieu ve ((cam duc) or (giao duc)) va hoang hai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sach ((v nang) OR (ki nang)) xa hoi. hieu ve ((cam duc) OR (giao duc)) va hoang hai cua te.
• Adding a wildcard symbol may retrieve word variants: hoc sach ((v nang) or (ki nang)) xa hoi. hieu ve ((cam duc) or (giao duc)) va hoang hai cua te*.