Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
tinh vai » tinh va, tinh hai, tinh bai
hoc sach » hoc sinh, hoc cac, hoc anh
va tinh » may tinh
cam luc » cam xuc, cau luc
van cam » van nam, van lam, van cau
tu sach » thu sach, su sach, te sach
cu tren » tu tren, dua tren
luc va » duc va, tuc va, loc va
vai cu » vai cua, van cu

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 (hoc sach)) ky nang ((ma hoa) or (xa hoi)). hieu van cam luc va tinh vai cu tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (hoc sach)) ky nang ((ma hoa) OR (xa hoi)). hieu van cam luc va tinh vai cu tren.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (hoc sach)) ky nang ((ma hoa) or (xa hoi)). hieu van cam luc va tinh vai cu tren*.