Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
van thanh » ban thanh, van tuan
sach doi » sach hoi, sach moi, sach dao
nang dai » nang dau, nang tai, lang dai
duc van » duc va, duc tan, duc manh
cuu tre » cua tre, cau tren, cau treo
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, pham duc
sach lo » sach dao, sach hoi, sach moi
dai hai » dai han, dai hoi, dai tai
ve cam » ve cham, ve cac, va cam
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: vu ((sach lo) OR (sach doi)) nang dai hai. hieu ve cam duc van thanh hai ((cuu tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu ((sach lo) OR (sach doi)) nang dai hai. hieu ve cam duc van thanh hai ((cuu tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu ((sach lo) OR (sach doi)) nang dai hai. hieu ve cam duc van thanh hai ((cuu tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: vu ((sach lo) OR (sach doi)) nang dai hai. hieu ve cam duc van thanh hai ((cuu tre) or (cua te))*.