Perhaps you should try some spelling variations:
chat xuc » chat huu, cam xuc, chao xu
hang hai » hoang hai, hang tai, thanh hai
hieu van » hieu va, thien van, lieu va
van chat » cao chat
hanh hai » thanh hai, nhanh hai, hanh tai
cua tre » cua te, cuu tre, cua triet
nang xa » nang x, lang xa, nang ma
xuc va » duc va, tuc va, luc va

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

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