Perhaps you should try some spelling variations:
tang mai » tang ma, tang tai, lang mai
cua tren » dua tren, ca tren, cua tre
tu sach » thu sach, su sach, te sach
mai hoi » mai khoi, dai hoi, lai hoi
hieu va » lieu va, hieu qua
va tinh » may tinh
tinh da » tinh va, tinh gia, tinh lao
y tang » ky tang, 6 tang, 7 tang
da cua » dai cua, day cua, dan cua

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 y tang mai hoi. hieu va ((chao xu) or (cam xuc)) va tinh da cua tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y tang mai hoi. hieu va ((chao xu) OR (cam xuc)) va tinh da cua tren.
• Adding a wildcard symbol may retrieve word variants: tu sach y tang mai hoi. hieu va ((chao xu) or (cam xuc)) va tinh da cua tren*.