Perhaps you should try some spelling variations:
tinh sinh » tinh ninh, tinh binh, tinh hinh
cham loc » cham soc, chon loc, cham o
sinh cau » trinh cau, sinh vat, sinh va
cau tren » cu tren, dau tren, ca tren
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va tinh » may tinh
mo hoc » mon hoc, co hoc
loc va » hoc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac ky nang ((mo hoc) or (x ho)). hieu ve cham loc va tinh sinh cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky nang ((mo hoc) OR (x ho)). hieu ve cham loc va tinh sinh cau tren.
• Adding a wildcard symbol may retrieve word variants: tu cac ky nang ((mo hoc) or (x ho)). hieu ve cham loc va tinh sinh cau tren*.