Perhaps you should try some spelling variations:
quan lai » quan li, quan tai, quan hai
van quan » van ban
lang van » dang van, tang van, hoang van
tu sach » thu sach, su sach, te sach
lai cuu » lai cua, lai chau, lai cuoc
duc van » duc va, duc tan, duc manh
nam duc » nam duoc, pham duc, nam thuc
hieu va » lieu va
sach ty » sach y, sach tu, sach thu
lang xa » lang ha, dang xay
cuu tre » cua tre, cau tren, cau treo

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 ty ((lang xa) or (lang van)) hoi. ((hieu va) OR (hieu qua)) nam duc van quan lai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ((lang xa) OR (lang van)) hoi. ((hieu va) OR (hieu qua)) nam duc van quan lai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty ((lang xa) or (lang van)) hoi. ((hieu va) OR (hieu qua)) nam duc van quan lai cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ty ((lang xa) or (lang van)) hoi. ((hieu va) OR (hieu qua)) nam duc van quan lai cuu tre*.