Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
cau tren » cu tren, dau tren, cau treo
thu sach » thuat sach, thuoc sach, thu hoach
va thanh » gia thanh, ban thanh, va tinh
tu sach » su sach, te sach, tu cach
cam duc » cam xuc, cao duc, pham duc
ca tren » cu tren, la tren, co tren
hieu ve » hieu va, hieu van
hang xa » hoang xa, hang va, hang ca
tu hang » thu hang, tu hanh, tu hung
ve cam » ve cham, ve cac, va cam

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) or (thu sach)) tu hang xa hoi. hieu ve cam duc va thanh vai ((cau tren) OR (ca tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) tu hang xa hoi. hieu ve cam duc va thanh vai ((cau tren) OR (ca tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (thu sach)) tu hang xa hoi. hieu ve cam duc va thanh vai ((cau tren) OR (ca tren))".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) tu hang xa hoi. hieu ve cam duc va thanh vai ((cau tren) OR (ca tren))*.