Perhaps you should try some spelling variations:
chua tre » chua tri, cua tre, chua trieu
chat duc » chat xuc, chat doc, chet duoc
sinh va » sinh vat, tinh va, dinh van
kinh va » kinh van, tinh va, minh va
so sach » so sanh, bo sach, co sach
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
vu sach » vu bach, su sach, vu khach
ve chat » va chat, van chat
y nang » ky nang, ly nang, v nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((so sach) or (vu sach)) y nang xa hoi. hieu ve chat duc va ((kinh va) OR (sinh va)) chua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (vu sach)) y nang xa hoi. hieu ve chat duc va ((kinh va) OR (sinh va)) chua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sach) or (vu sach)) y nang xa hoi. hieu ve chat duc va ((kinh va) OR (sinh va)) chua tre".
• Adding a wildcard symbol may retrieve word variants: ((so sach) or (vu sach)) y nang xa hoi. hieu ve chat duc va ((kinh va) OR (sinh va)) chua tre*.