Perhaps you should try some spelling variations:
thu nhap » thu ha, khu nha
va trinh » van trinh, lap trinh, qua trinh
hieu van » hieu va, thien van, lieu va
nang ma » tang ma, sang ma, nang cao
thu tai » tu tai, tru tai, thu hai
van cac » van hac, van cau, van bac
cac dat » cac dan, cai dat, cac dai
va tinh » may tinh
ma hoi » mai hoi, xa hoi, ma hoa
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu nhap) or (thu tai)) ky nang ma hoi. hieu van cac dat ((va trinh) or (va tinh)) vi cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu nhap) OR (thu tai)) ky nang ma hoi. hieu van cac dat ((va trinh) OR (va tinh)) vi cua vat.
• Adding a wildcard symbol may retrieve word variants: ((thu nhap) or (thu tai)) ky nang ma hoi. hieu van cac dat ((va trinh) or (va tinh)) vi cua vat*.