Perhaps you should try some spelling variations:
hanh hai » thanh hai, nhanh hai, hang hai
trung va » truong va, trang va, trung ha
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu van
hai cua » thai cua, dai cua, hoi cua
hieu va » lieu va, hieu qua
truc va » thuc va, thuc vat
y nang » ky nang, ly nang, v 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: tu sach y nang xa hoi. ((hieu ve) or (hieu va)) cau ((truc va) or (trung va)) hanh hai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang xa hoi. ((hieu ve) OR (hieu va)) cau ((truc va) OR (trung va)) hanh hai cua te.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. ((hieu ve) or (hieu va)) cau ((truc va) or (trung va)) hanh hai cua te*.