Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
thu sach » tu sach, thuat sach, thuoc sach
doan hai » doanh tai, hoang hai, doan va
doan vai » doan va, doan van, doan vi
tuc van » thuc van, truc van, tuc va
cau tuc » cau truc, cau tu, cau luc
sang ma » tang ma, nang ma, sang tao
va cau » van cau, va cac, va dau
y sang » _ sang, duy sang
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: ((thu sach) or (thuat lanh)) y sang ma hoa. lieu va cau tuc van ((doan vai) OR (doan hai)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (thuat lanh)) y sang ma hoa. lieu va cau tuc van ((doan vai) OR (doan hai)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) or (thuat lanh)) y sang ma hoa. lieu va cau tuc van ((doan vai) OR (doan hai)) cua te".
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (thuat lanh)) y sang ma hoa. lieu va cau tuc van ((doan vai) OR (doan hai)) cua te*.