Perhaps you should try some spelling variations:
giang cua » gian cua, giang qua, giang xua
va thach » va thanh, vay khach, mai thach
su sach » so sach, vu sach
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, may nang
va cao » va cac, va co, va dao
v nang » va nang, vu nang, van nang
xuc va » duc va, tuc va, luc va
va cam » va cham, va cac, va cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ((y nang) OR (v nang)) xa hoi. hieu ((va cam) or (va cao)) xuc va thach giang cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((y nang) OR (v nang)) xa hoi. hieu ((va cam) OR (va cao)) xuc va thach giang cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((y nang) OR (v nang)) xa hoi. hieu ((va cam) or (va cao)) xuc va thach giang cua tre".
• Adding a wildcard symbol may retrieve word variants: su sach ((y nang) OR (v nang)) xa hoi. hieu ((va cam) or (va cao)) xuc va thach giang cua tre*.