Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trong vinh » trong kinh, trong sinh, trong linh
lieu tinh » trieu tinh, diep tinh, bien tinh
trinh vat » trinh van, trinh luat, sinh vat
vat nhung » va nhung, vap nhung, vai nhung
cong minh » cong vinh, cong tinh, song minh
tong minh » thong minh, trong minh, song minh
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: du lieu tinh - hanh trinh vat nhung ((((cong minh) or (trong vinh))) or (tong minh)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: du lieu tinh - hanh trinh vat nhung ((((cong minh) OR (trong vinh))) OR (tong minh)) toan tap.
• Adding a wildcard symbol may retrieve word variants: du lieu tinh - hanh trinh vat nhung ((((cong minh) or (trong vinh))) or (tong minh)) toan tap*.