Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
lang xa » lang ha, dang xay, lang van
van cau » van hau, van chat, toan cau
van dau » van dao, phan dau
va danh » va dinh, va dan, va hanh
danh di » danh du, xanh di, danh dien
cau tre » cau tren, cau treo, cau tra
y lang » o lang, _ lang, tay lang
loc va » hoc va, luc va
di cau » da cau, diem cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu hoach) or (thuat sach)) y lang xa hoi. thien ((van cau) or (van dau)) loc va danh di cau tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu hoach) OR (thuat sach)) y lang xa hoi. thien ((van cau) OR (van dau)) loc va danh di cau tre.
• Adding a wildcard symbol may retrieve word variants: ((thu hoach) or (thuat sach)) y lang xa hoi. thien ((van cau) or (van dau)) loc va danh di cau tre*.